Bump mkdocs-material from 9.5.12 to 9.5.15

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 9.5.12 to 9.5.15.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.5.12...9.5.15)

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

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

docker/requirements.txt

@@ -1,7 +1,7 @@
 cairosvg==2.7.1
 mike==2.0.0
 mkdocs-awesome-pages-plugin==2.9.2
-mkdocs-material==9.5.12
+mkdocs-material==9.5.15
 mkdocs==1.5.3
 pillow==10.2.0
 pymdown-extensions==10.7.1

requirements.txt

@@ -7,7 +7,7 @@ mike==2.0.0
 mkdocs-awesome-pages-plugin==2.9.2
 mkdocs-click==0.8.1
 mkdocs-macros-plugin==1.0.5
-mkdocs-material==9.5.12
+mkdocs-material==9.5.15
 mkdocs==1.5.3
 mkdocstrings-python-legacy==0.2.3
 mkdocstrings==0.24.1