Update mkdocs-material requirement (#58)

Updates the requirements on [mkdocs-material](https://github.com/squidfunk/mkdocs-material) to permit the latest version.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.5.17...9.7.0)

---
updated-dependencies:
- dependency-name: mkdocs-material
  dependency-version: 9.7.0
  dependency-type: direct:development
...

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Author: dependabot[bot]

pyproject.toml

@@ -28,7 +28,7 @@ dev = ["pre-commit>4,<5"]
 
 docs = [
     "mkdocstrings[python]~=0.25",
-    "mkdocs-material>=9.5.17,<9.7.0",
+    "mkdocs-material>=9.5.17,<9.8.0",
     "fancyboxmd~=1.1"
 ]