Update mkdocs-material[imaging] requirement from ~=9.5.30 to ~=9.5.38

Updates the requirements on [mkdocs-material[imaging]](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@9.5.30...9.5.38)

---
updated-dependencies:
- dependency-name: mkdocs-material[imaging]
  dependency-type: direct:production
...

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

doc_requirements.txt

@@ -1,4 +1,4 @@
-mkdocs-material[imaging]~=9.5.30
+mkdocs-material[imaging]~=9.5.38
 mkdocs~=1.6.0
 mkdocstrings-python~=1.10.7
 black~=24.8.0