Bump mkdocstrings from 1.0.0 to 1.0.3

Bumps [mkdocstrings](https://github.com/mkdocstrings/mkdocstrings) from 1.0.0 to 1.0.3.
- [Release notes](https://github.com/mkdocstrings/mkdocstrings/releases)
- [Changelog](https://github.com/mkdocstrings/mkdocstrings/blob/main/CHANGELOG.md)
- [Commits](https://github.com/mkdocstrings/mkdocstrings/compare/1.0.0...1.0.3)

---
updated-dependencies:
- dependency-name: mkdocstrings
  dependency-version: 1.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

docs/requirements.txt

@@ -2,4 +2,4 @@ mkdocs==1.6.1
 mkdocs-autorefs==1.4.3
 mkdocs-material==9.6.20
 mkdocs-material-extensions==1.3.1
-mkdocstrings==1.0.0
+mkdocstrings==1.0.3