Update mkdocstrings requirement from >=0.18 to >=1.0.3

Updates the requirements on [mkdocstrings](https://github.com/mkdocstrings/mkdocstrings) to permit the latest version.
- [Release notes](https://github.com/mkdocstrings/mkdocstrings/releases)
- [Changelog](https://github.com/mkdocstrings/mkdocstrings/blob/main/CHANGELOG.md)
- [Commits](mkdocstrings/mkdocstrings@0.18.0...1.0.3)

---
updated-dependencies:
- dependency-name: mkdocstrings
  dependency-version: 1.0.3
  dependency-type: direct:development
...

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

Author: dependabot[bot]

pyproject.toml

@@ -76,7 +76,7 @@ test = [
 ]
 docs = [
   "mkdocs",
-  "mkdocstrings[python]>=0.18",
+  "mkdocstrings[python]>=1.0.3",
   "mkdocs-material",
   "markdown-callouts",
   "Pygments",