chore(deps-dev): bump pypdf

Bumps [pypdf](https://github.com/py-pdf/pypdf) from 5.1.0 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@5.1.0...6.1.3) --- updated-dependencies: - dependency-name: pypdf dependency-version: 6.1.3 dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]