Log Message:
py-pdf: updated to 5.3.0

Version 5.3.0, 2025-02-09

New Features (ENH)
- Handle attachments in /Kids and provide object-oriented API

Bug Fixes (BUG)
- Handle annotations being None on merging

Robustness (ROB)
- Prevent excessive layout mode text output from Type3 fonts

Documentation (DOC)
- stefan6419846 becomes BDFL of pypdf
- Tidy the visitor function description

Developer Experience (DEV)
- Remove ignoring multiple Ruff rules
- Remove unused mutmut configuration

Testing (TST)
- Fix warning assertions to use `pytest.warns()`