build(deps): bump mkdocs-macros-plugin from 1.0.2 to 1.0.4

Bumps [mkdocs-macros-plugin](https://github.com/fralau/mkdocs_macros_plugin) from 1.0.2 to 1.0.4.
- [Release notes](https://github.com/fralau/mkdocs_macros_plugin/releases)
- [Changelog](https://github.com/fralau/mkdocs_macros_plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/fralau/mkdocs_macros_plugin/compare/v1.0.2...v1.0.4)

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

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

docs/requirements.txt

@@ -1,7 +1,7 @@
 mkdocs-glightbox==0.3.4
 mkdocs-awesome-pages-plugin==2.9.1
 mkdocs-git-revision-date-localized-plugin==1.2.0
-mkdocs-macros-plugin==1.0.2
+mkdocs-macros-plugin==1.0.4
 mkdocs-material==9.1.21
 mkdocs-minify-plugin==0.7.1
 mkdocs-redirects==1.2.1