fix(ci): 🛡️ mitigate CVE-2025-8869 by enforcing wheels-only pip installs and upgrading pinned dependencies (#4598)

# Description of Changes

This PR mitigates **CVE-2025-8869** (GHSA-4xh5-x5gv-qwph), a
high-severity vulnerability in `pip` ≤ 25.2 that allows arbitrary file
overwrite via unsafe tar extraction in sdist fallback handling.

**What was changed:**
- Added environment variables to all GitHub Actions (`pre_commit.yml`,
`sync_files.yml`) to **enforce binary-only installs**:
  - `PIP_ONLY_BINARY=":all:"`
  - `PIP_DISABLE_PIP_VERSION_CHECK="1"`
- Updated multiple `.github/scripts/*.txt` requirements to use Python
3.12 as the generation base.
- Upgraded pinned dependencies to latest secure versions:
- `filelock 3.19.1`, `identify 2.6.15`, `platformdirs 4.4.0`, `pyyaml
6.0.3`, `behave 1.3.3`, `pypdf 6.1.1`, `reportlab 4.4.4`, `requests
2.32.5`
- Adjusted file path formatting (`\` → `/`) for consistent
cross-platform compatibility.

**Why the change was made:**
To prevent exploitation of the tar extraction vulnerability in
vulnerable pip versions when installing from source distributions during
CI runs.

---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.

testing/cucumber/requirements.txt

@@ -1,13 +1,13 @@
 #
-# This file is autogenerated by pip-compile with Python 3.10
+# This file is autogenerated by pip-compile with Python 3.12
 # by the following command:
 #
 #    pip-compile --generate-hashes --output-file='testing\cucumber\requirements.txt' --strip-extras 'testing\cucumber\requirements.in'
 #
-behave==1.3.1 \
-    --hash=sha256:2a1f3a2490242132c4daf0732d9b65c99be6fef1f787f97fd028ea5a402025ff \
-    --hash=sha256:71b2dc00664de83c3aad61c91e5b3051b7b860aa2053e24db4742edecb800d21
-    # via -r testing\cucumber\requirements.in
+behave==1.3.3 \
+    --hash=sha256:2b8f4b64ed2ea756a5a2a73e23defc1c4631e9e724c499e46661778453ebaf51 \
+    --hash=sha256:89bdb62af8fb9f147ce245736a5de69f025e5edfb66f1fbe16c5007493f842c0
+    # via -r testing/cucumber/requirements.in
 certifi==2025.8.3 \
     --hash=sha256:e564105f78ded564e3ae7c923924435e1daa7463faeab5bb932bc53ffae63407 \
     --hash=sha256:f6c12493cfb1b06ba2ff328595af9350c65d6644968e5d3a2ffd78699af217a5
@@ -103,9 +103,9 @@ cucumber-expressions==18.0.1 \
     --hash=sha256:86230d503cdda7ef35a1f2072a882d7d57c740aa4c163c82b07f039b6bc60c42 \
     --hash=sha256:86ce41bf28ee520408416f38022e5a083d815edf04a0bd1dae46d474ca597c60
     # via behave
-cucumber-tag-expressions==6.2.0 \
-    --hash=sha256:b60aa2cdbf9ac43e28d9b0e4fd49edf9f09d5d941257d2912f5228f9d166c023 \
-    --hash=sha256:f94404b656831c56a3815da5305ac097003884d2ae64fa51f5f4fad82d97e583
+cucumber-tag-expressions==7.0.0 \
+    --hash=sha256:3acb919113eb361930519f4280b23e1df58a0201b9512d25470a2e9eea8868ed \
+    --hash=sha256:c95ee130c0f28b356f8a92495481383e1bf8ebcdb761e0ce72826f905fbd9c9f
     # via behave
 idna==3.10 \
     --hash=sha256:12f65c9b470abda6dc35cf8e63cc574b1c52b11df2c86030af0ac09b01b13ea9 \
@@ -271,63 +271,25 @@ pycryptodome==3.23.0 \
     --hash=sha256:dea827b4d55ee390dc89b2afe5927d4308a8b538ae91d9c6f7a5090f397af1aa \
     --hash=sha256:e3f2d0aaf8080bda0587d58fc9fe4766e012441e2eed4269a77de6aea981c8be \
     --hash=sha256:eb8f24adb74984aa0e5d07a2368ad95276cf38051fe2dc6605cbcf482e04f2a7
-    # via -r testing\cucumber\requirements.in
-pypdf==6.0.0 \
-    --hash=sha256:282a99d2cc94a84a3a3159f0d9358c0af53f85b4d28d76ea38b96e9e5ac2a08d \
-    --hash=sha256:56ea60100ce9f11fc3eec4f359da15e9aec3821b036c1f06d2b660d35683abb8
-    # via -r testing\cucumber\requirements.in
-reportlab==4.4.3 \
-    --hash=sha256:073b0975dab69536acd3251858e6b0524ed3e087e71f1d0d1895acb50acf9c7b \
-    --hash=sha256:df905dc5ec5ddaae91fc9cb3371af863311271d555236410954961c5ee6ee1b5
-    # via -r testing\cucumber\requirements.in
-requests==2.32.4 \
-    --hash=sha256:27babd3cda2a6d50b30443204ee89830707d396671944c998b5975b031ac2b2c \
-    --hash=sha256:27d0316682c8a29834d3264820024b62a36942083d52caf2f14c0591336d3422
-    # via -r testing\cucumber\requirements.in
+    # via -r testing/cucumber/requirements.in
+pypdf==6.1.1 \
+    --hash=sha256:10f44d49bf2a82e54c3c5ba3cdcbb118f2a44fc57df8ce51d6fb9b1ed9bfbe8b \
+    --hash=sha256:7781f99493208a37a7d4275601d883e19af24e62a525c25844d22157c2e4cde7
+    # via -r testing/cucumber/requirements.in
+reportlab==4.4.4 \
+    --hash=sha256:299b3b0534e7202bb94ed2ddcd7179b818dcda7de9d8518a57c85a58a1ebaadb \
+    --hash=sha256:cb2f658b7f4a15be2cc68f7203aa67faef67213edd4f2d4bdd3eb20dab75a80d
+    # via -r testing/cucumber/requirements.in
+requests==2.32.5 \
+    --hash=sha256:2462f94637a34fd532264295e186976db0f5d453d1cdd31473c85a6a161affb6 \
+    --hash=sha256:dbba0bac56e100853db0ea71b82b4dfd5fe2bf6d3754a8893c3af500cec7d7cf
+    # via -r testing/cucumber/requirements.in
 six==1.17.0 \
     --hash=sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274 \
     --hash=sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81
     # via
     #   behave
     #   parse-type
-tomli==2.2.1 \
-    --hash=sha256:023aa114dd824ade0100497eb2318602af309e5a55595f76b626d6d9f3b7b0a6 \
-    --hash=sha256:02abe224de6ae62c19f090f68da4e27b10af2b93213d36cf44e6e1c5abd19fdd \
-    --hash=sha256:286f0ca2ffeeb5b9bd4fcc8d6c330534323ec51b2f52da063b11c502da16f30c \
-    --hash=sha256:2d0f2fdd22b02c6d81637a3c95f8cd77f995846af7414c5c4b8d0545afa1bc4b \
-    --hash=sha256:33580bccab0338d00994d7f16f4c4ec25b776af3ffaac1ed74e0b3fc95e885a8 \
-    --hash=sha256:400e720fe168c0f8521520190686ef8ef033fb19fc493da09779e592861b78c6 \
-    --hash=sha256:40741994320b232529c802f8bc86da4e1aa9f413db394617b9a256ae0f9a7f77 \
-    --hash=sha256:465af0e0875402f1d226519c9904f37254b3045fc5084697cefb9bdde1ff99ff \
-    --hash=sha256:4a8f6e44de52d5e6c657c9fe83b562f5f4256d8ebbfe4ff922c495620a7f6cea \
-    --hash=sha256:4e340144ad7ae1533cb897d406382b4b6fede8890a03738ff1683af800d54192 \
-    --hash=sha256:678e4fa69e4575eb77d103de3df8a895e1591b48e740211bd1067378c69e8249 \
-    --hash=sha256:6972ca9c9cc9f0acaa56a8ca1ff51e7af152a9f87fb64623e31d5c83700080ee \
-    --hash=sha256:7fc04e92e1d624a4a63c76474610238576942d6b8950a2d7f908a340494e67e4 \
-    --hash=sha256:889f80ef92701b9dbb224e49ec87c645ce5df3fa2cc548664eb8a25e03127a98 \
-    --hash=sha256:8d57ca8095a641b8237d5b079147646153d22552f1c637fd3ba7f4b0b29167a8 \
-    --hash=sha256:8dd28b3e155b80f4d54beb40a441d366adcfe740969820caf156c019fb5c7ec4 \
-    --hash=sha256:9316dc65bed1684c9a98ee68759ceaed29d229e985297003e494aa825ebb0281 \
-    --hash=sha256:a198f10c4d1b1375d7687bc25294306e551bf1abfa4eace6650070a5c1ae2744 \
-    --hash=sha256:a38aa0308e754b0e3c67e344754dff64999ff9b513e691d0e786265c93583c69 \
-    --hash=sha256:a92ef1a44547e894e2a17d24e7557a5e85a9e1d0048b0b5e7541f76c5032cb13 \
-    --hash=sha256:ac065718db92ca818f8d6141b5f66369833d4a80a9d74435a268c52bdfa73140 \
-    --hash=sha256:b82ebccc8c8a36f2094e969560a1b836758481f3dc360ce9a3277c65f374285e \
-    --hash=sha256:c954d2250168d28797dd4e3ac5cf812a406cd5a92674ee4c8f123c889786aa8e \
-    --hash=sha256:cb55c73c5f4408779d0cf3eef9f762b9c9f147a77de7b258bef0a5628adc85cc \
-    --hash=sha256:cd45e1dc79c835ce60f7404ec8119f2eb06d38b1deba146f07ced3bbc44505ff \
-    --hash=sha256:d3f5614314d758649ab2ab3a62d4f2004c825922f9e370b29416484086b264ec \
-    --hash=sha256:d920f33822747519673ee656a4b6ac33e382eca9d331c87770faa3eef562aeb2 \
-    --hash=sha256:db2b95f9de79181805df90bedc5a5ab4c165e6ec3fe99f970d0e302f384ad222 \
-    --hash=sha256:e59e304978767a54663af13c07b3d1af22ddee3bb2fb0618ca1593e4f593a106 \
-    --hash=sha256:e85e99945e688e32d5a35c1ff38ed0b3f41f43fad8df0bdf79f72b2ba7bc5272 \
-    --hash=sha256:ece47d672db52ac607a3d9599a9d48dcb2f2f735c6c2d1f34130085bb12b112a \
-    --hash=sha256:f4039b9cbc3048b2416cc57ab3bda989a6fcf9b36cf8937f01a6e731b64f80d7
-    # via behave
-typing-extensions==4.14.1 \
-    --hash=sha256:38b39f4aeeab64884ce9f74c94263ef78f3c22467c8724005483154c26648d36 \
-    --hash=sha256:d1e1e3b58374dc93031d6eda2420a48ea44a36c2b4766a4fdeb3710755731d76
-    # via pypdf
 urllib3==2.5.0 \
     --hash=sha256:3fc47733c7e419d4bc3f6b3dc2b4f890bb743906a30d56ba4a5bfa4bbff92760 \
     --hash=sha256:e6b01673c0fa6a13e374b50871808eb3bf7046c4b125b216f6bf1cc604cff0dc