Update mkdocstrings-python requirement from ~=1.10.9 to ~=1.12.1

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@1.10.9...1.12.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

doc_requirements.txt

@@ -1,6 +1,6 @@
 mkdocs-material[imaging]~=9.5.34
 mkdocs~=1.6.1
-mkdocstrings-python~=1.10.9
+mkdocstrings-python~=1.12.1
 black~=24.8.0
 griffe-inherited-docstrings~=1.0.0
 mkdocs-glightbox~=0.4.0