chore(ci): update GitHub Actions to latest stable versions (#5629)

# Description of Changes

This pull request updates several GitHub Actions and related
dependencies across multiple workflow files to newer versions. The main
goal is to keep the CI/CD pipeline up-to-date with the latest security
patches, features, and bug fixes provided by upstream maintainers. The
changes primarily involve upgrading the versions of commonly used
actions like `actions/checkout`, `docker/login-action`,
`actions/setup-java`, `gradle/actions/setup-gradle`, and
`actions/upload-artifact`.

The most important changes are:

**Actions Version Upgrades (General Maintenance & Security):**
* Upgraded `actions/checkout` from v6.0.1 to v6.0.2 in all workflow
files to ensure the latest bug fixes and improvements are used.
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* Upgraded `docker/login-action` from v3.6.0 to v3.7.0 for improved
Docker Hub authentication.
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**Java and Gradle Tooling Updates:**
* Updated `actions/setup-java` from v5.0.0 to v5.2.0 and
`gradle/actions/setup-gradle` from v5.0.0 to v5.0.1 to get the latest
Java and Gradle setup improvements.
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* Upgraded `actions/setup-node` from v5.0.0 to v6.1.0 for Node.js setup.

**Artifact Handling Improvements:**
* Upgraded `actions/upload-artifact` from v4.6.2 to v6.0.0 for uploading
build and test artifacts, which may include performance and reliability
improvements.
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**Other Action Updates:**
* Updated `actions/ai-inference` from v2.0.4 to v2.0.5 in the AI PR
title review workflow.

These updates help ensure that the CI/CD workflows remain secure,
reliable, and compatible with the latest tools and platforms.

---

## 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)

### Translations (if applicable)

- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)

### 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.

.github/workflows/push-docker.yml

@@ -37,16 +37,16 @@ jobs:
         with:
           egress-policy: audit
 
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Set up JDK 21
-        uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
+        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
         with:
           java-version: "21"
           distribution: "temurin"
 
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5.0.0
+        uses: gradle/actions/setup-gradle@f29f5a9d7b09a7c6b29859002d29d24e1674c884 # v5.0.1
         with:
           gradle-version: 8.14
 
@@ -75,13 +75,13 @@ jobs:
           cosign-release: "v2.4.1"
 
       - name: Login to Docker Hub
-        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
         with:
           username: ${{ secrets.DOCKER_HUB_USERNAME }}
           password: ${{ secrets.DOCKER_HUB_API }}
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}