build(deps): Bump mkdocs-rss-plugin from 1.11.0 to 1.12.0

Bumps [mkdocs-rss-plugin](https://github.com/Guts/mkdocs-rss-plugin) from 1.11.0 to 1.12.0.
- [Release notes](https://github.com/Guts/mkdocs-rss-plugin/releases)
- [Changelog](https://github.com/Guts/mkdocs-rss-plugin/blob/main/CHANGELOG.md)
- [Commits](Guts/mkdocs-rss-plugin@1.11.0...1.12.0)

---
updated-dependencies:
- dependency-name: mkdocs-rss-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -17,4 +17,4 @@ mkdocs-macros-plugin==1.0.5
 mkdocs-meta-descriptions-plugin==3.0.0
 mkdocs-monorepo-plugin==1.1.0
 mkdocs-redirects==1.2.1
-mkdocs-rss-plugin==1.11.0
+mkdocs-rss-plugin==1.12.0