Bump pypdf from 6.7.3 to 6.7.4

Bumps [pypdf](https://github.com/py-pdf/pypdf) from 6.7.3 to 6.7.4.
- [Release notes](https://github.com/py-pdf/pypdf/releases)
- [Changelog](https://github.com/py-pdf/pypdf/blob/main/CHANGELOG.md)
- [Commits](https://github.com/py-pdf/pypdf/compare/6.7.3...6.7.4)

---
updated-dependencies:
- dependency-name: pypdf
  dependency-version: 6.7.4
  dependency-type: direct:production
...

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

requirements.txt

@@ -15,7 +15,7 @@ mock==5.1.0
 psutil==6.0.0
 psycopg2-binary==2.9.9
 pydantic>=2.0.0
-pypdf==6.7.3
+pypdf==6.7.4
 pytest-asyncio==0.24.0
 pytest-xdist==3.5.0
 pytest==8.3.3