Chore(deps-dev): Bump mkdocs-material in the development group (#9142)

Bumps the development group with 1 update: [mkdocs-material](https://github.com/squidfunk/mkdocs-material).


Updates `mkdocs-material` from 9.6.3 to 9.6.4
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](https://github.com/squidfunk/mkdocs-material/compare/9.6.3...9.6.4)

---
updated-dependencies:
- dependency-name: mkdocs-material
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: development
...

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

Pipfile.lock

@@ -3582,12 +3582,12 @@
         },
         "mkdocs-material": {
             "hashes": [
-                "sha256:1125622067e26940806701219303b27c0933e04533560725d97ec26fd16a39cf",
-                "sha256:c87f7d1c39ce6326da5e10e232aed51bae46252e646755900f4b0fc9192fa832"
+                "sha256:414e8376551def6d644b8e6f77226022868532a792eb2c9accf52199009f568f",
+                "sha256:4d1d35e1c1d3e15294cb7fa5d02e0abaee70d408f75027dc7be6e30fb32e6867"
             ],
             "index": "pypi",
             "markers": "python_version >= '3.8'",
-            "version": "==9.6.3"
+            "version": "==9.6.4"
         },
         "mkdocs-material-extensions": {
             "hashes": [