Update mkdocs-material requirement in the all-pip-packages group (#187)

Updates the requirements on [mkdocs-material](https://github.com/squidfunk/mkdocs-material) to permit the latest version.

Updates `mkdocs-material` to 9.7.3
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.7.2...9.7.3)

---
updated-dependencies:
- dependency-name: mkdocs-material
  dependency-version: 9.7.3
  dependency-type: direct:production
  dependency-group: all-pip-packages
...

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Author: dependabot[bot]

requirements.txt

@@ -3,7 +3,7 @@ mkdocs==1.6.1
 mkdocs-awesome-pages-plugin==2.10.1
 mkdocs-git-revision-date-localized-plugin==1.5.1
 mkdocs-glightbox==0.5.2
-mkdocs-material~=9.7.2
+mkdocs-material~=9.7.3
 mkdocs-material-extensions==1.3.1
 numpy==2.4.2
 pandas==3.0.1