Bump mkdocs-macros-plugin from 1.3.7 to 1.3.9

Bumps [mkdocs-macros-plugin](https://github.com/fralau/mkdocs_macros_plugin) from 1.3.7 to 1.3.9.
- [Release notes](https://github.com/fralau/mkdocs_macros_plugin/releases)
- [Changelog](https://github.com/fralau/mkdocs-macros-plugin/blob/master/CHANGELOG.md)
- [Commits](fralau/mkdocs-macros-plugin@v1.3.7...v1.3.9)

---
updated-dependencies:
- dependency-name: mkdocs-macros-plugin
  dependency-version: 1.3.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
 mkdocs-material==9.6.16
-mkdocs-macros-plugin==1.3.7
+mkdocs-macros-plugin==1.3.9
 pyyaml==6.0.2
 mkdocs-markdownextradata-plugin==0.2.6