Bump pypdf from 4.3.1 to 6.13.2

Bumps [pypdf](https://github.com/py-pdf/pypdf) from 4.3.1 to 6.13.2.
- [Release notes](https://github.com/py-pdf/pypdf/releases)
- [Changelog](https://github.com/py-pdf/pypdf/blob/main/CHANGELOG.md)
- [Commits](py-pdf/pypdf@4.3.1...6.13.2)

---
updated-dependencies:
- dependency-name: pypdf
  dependency-version: 6.13.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -23,7 +23,7 @@ matplotlib==3.9.2
 mlflow==2.16.1
 openai==1.64.0
 plotly==5.24.1
-pypdf==4.3.1
+pypdf==6.13.2
 pytesseract==0.3.13
 python-dotenv==1.0.1
 PyMuPDF==1.24.10