chore(deps): update mkdocstrings-python requirement

Updates the requirements on [mkdocstrings-python](https://github.com/mkdocstrings/python) to permit the latest version.
- [Release notes](https://github.com/mkdocstrings/python/releases)
- [Changelog](https://github.com/mkdocstrings/python/blob/main/CHANGELOG.md)
- [Commits](mkdocstrings/python@1.11.1...1.12.1)

---
updated-dependencies:
- dependency-name: mkdocstrings-python
  dependency-type: direct:production
...

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

requirements-docs.txt

@@ -1,3 +1,3 @@
 -r requirements-dev.txt
 mkdocs-material ~= 9.5.39
-mkdocstrings-python ~= 1.11.1
+mkdocstrings-python ~= 1.12.1