change from pypdf2 to pypdf (#2666)

# Description

addition to #2636

## Checklist

- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have performed a self-review of my own code
- [ ] I have attached images of the change if it is UI based
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] If my code has heavily changed functionality I have updated
relevant docs on [Stirling-PDFs doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
- [x] My changes generate no new warnings
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

cucumber/exampleFiles/example.html

@@ -8,4 +8,3 @@
 
 </body>
 </html>
-

cucumber/features/steps/step_definitions.py

@@ -1,7 +1,8 @@
 import os
 import requests
 from behave import given, when, then
-from PyPDF2 import PdfWriter, PdfReader
+from pypdf import PdfWriter, PdfReader
+from pypdf.errors import PdfReadError
 import io
 import random
 import string

cucumber/requirements.in

@@ -1,5 +1,5 @@
 behave
 requests
-PyPDF2
+pypdf
 reportlab
 PyCryptodome

cucumber/requirements.txt

@@ -231,9 +231,9 @@ pycryptodome==3.21.0 \
     --hash=sha256:f7787e0d469bdae763b876174cf2e6c0f7be79808af26b1da96f1a64bcf47297 \
     --hash=sha256:ff99f952db3db2fbe98a0b355175f93ec334ba3d01bbde25ad3a5a33abc02b58
     # via -r cucumber\requirements.in
-pypdf2==3.0.1 \
-    --hash=sha256:a74408f69ba6271f71b9352ef4ed03dc53a31aa404d29b5d31f53bfecfee1440 \
-    --hash=sha256:d16e4205cfee272fbdc0568b68d82be796540b1537508cef59388f839c191928
+pypdf==5.1.0 \
+    --hash=sha256:3bd4f503f4ebc58bae40d81e81a9176c400cbbac2ba2d877367595fb524dfdfc \
+    --hash=sha256:425a129abb1614183fd1aca6982f650b47f8026867c0ce7c4b9f281c443d2740
     # via -r cucumber\requirements.in
 reportlab==4.2.5 \
     --hash=sha256:5cf35b8fd609b68080ac7bbb0ae1e376104f7d5f7b2d3914c7adc63f2593941f \
@@ -249,6 +249,10 @@ six==1.17.0 \
     # via
     #   behave
     #   parse-type
+typing-extensions==4.12.2 \
+    --hash=sha256:04e5ca0351e0f3f85c6853954072df659d0d13fac324d0072316b67d7794700d \
+    --hash=sha256:1a7ead55c7e559dd4dee8856e3a88b41225abfe1ce8df57b7c13915fe121ffb8
+    # via pypdf
 urllib3==2.3.0 \
     --hash=sha256:1cee9ad369867bfdbbb48b7dd50374c0967a0bb7710050facf0dd6911440e3df \
     --hash=sha256:f8c5449b3cf0861679ce7e0503c7b44b5ec981bec0d1d3795a07f1ba96f0204d