Update pypdf requirement from ~=4.2 to ~=5.0

Updates the requirements on [pypdf](https://github.com/py-pdf/pypdf) to permit the latest version.
- [Release notes](https://github.com/py-pdf/pypdf/releases)
- [Changelog](https://github.com/py-pdf/pypdf/blob/main/CHANGELOG.md)
- [Commits](py-pdf/pypdf@4.2.0...5.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -35,7 +35,7 @@ dependencies = [
     "pandas~=2.0",
     "pyarrow~=17.0",
     "pydantic[email]~=2.5",
-    "pypdf~=4.2",
+    "pypdf~=5.0",
     "pyterrier-dr @ git+https://github.com/terrierteam/pyterrier_dr.git@123a5d0e76824b275bad910f76547b811baebebb",
     "pyterrier-t5 @ git+https://github.com/terrierteam/pyterrier_t5.git@679e3320b0f7c997de108bc44f66ef15fba72f08",
     "python-dotenv~=1.0",