Bump mkdocs-material from 9.1.14 to 9.1.15

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 9.1.14 to 9.1.15.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.1.14...9.1.15)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

poetry.lock

@@ -24,7 +24,7 @@ black = "^23.3.0"
 twine = "^4.0.2"
 mkdocs = "^1.4.3"
 mkdocstrings = {extras = ["python"], version = "^0.22.0"}
-mkdocs-material = "^9.1.14"
+mkdocs-material = "^9.1.15"
 pytest = "^7.3.1"
 httpx = "^0.24.1"
 scikit-build = "0.13"