v23.0.3

[Bastian-Krause]

Bug fixes in 23.0.3

• Update to PyYAML 6.0.1 to prevent install errors with Cython>=3.0, see:
  "AttributeError: cython_sources" with Cython 3.0.0a10 yaml/pyyaml#601
  Backport #702 for 5.4: Pin Cython build constraint to < 3.0 yaml/pyyaml#726 (comment)

---

This discussion was created from the release v23.0.3.