Update mkdocstrings requirement from ^0.27.0 to >=0.27,<0.29 (#238)

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@0.27.0...0.28.0)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pyproject.toml

@@ -33,7 +33,7 @@ ruff = ">=0.5.1,<0.9.5"
 mypy = "^1.14.1"
 pytest = "^8.3.4"
 types-requests = "^2.32.0.20241016"
-mkdocstrings = "^0.27.0"
+mkdocstrings = ">=0.27,<0.29"
 mkdocs-material = "^9.5.49"
 mkdocs = "^1.6.1"
 requests-testing = "^0.2.0"