Bump pypdf2 from 1.27.7 to 1.27.8 (#450)

Bumps [pypdf2](https://github.com/py-pdf/PyPDF2) from 1.27.7 to 1.27.8.
- [Release notes](https://github.com/py-pdf/PyPDF2/releases)
- [Changelog](https://github.com/py-pdf/PyPDF2/blob/main/CHANGELOG)
- [Commits](py-pdf/pypdf@1.27.7...1.27.8)

---
updated-dependencies:
- dependency-name: pypdf2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -17,7 +17,7 @@ MarkupSafe==2.1.1
 mock==4.0.3
 multidict==6.0.2
 pycountry==22.3.5
-PyPDF2==1.27.7
+PyPDF2==1.27.8
 PySocks==1.7.1
 python-bidi==0.4.2
 requests==2.27.1