chore(deps): bump pypdf from 6.1.1 to 6.1.3

Bumps [pypdf](https://github.com/py-pdf/pypdf) from 6.1.1 to 6.1.3.
- [Release notes](https://github.com/py-pdf/pypdf/releases)
- [Changelog](https://github.com/py-pdf/pypdf/blob/main/CHANGELOG.md)
- [Commits](py-pdf/pypdf@6.1.1...6.1.3)

---
updated-dependencies:
- dependency-name: pypdf
  dependency-version: 6.1.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements/base.txt

@@ -18,5 +18,5 @@ pydantic-settings
 pydantic_core
 python-decouple==3.8
 python-dotenv==1.2.1
-pypdf==6.1.1
+pypdf==6.1.3
 tiktoken==0.11.0