Add mkdocs-redirects to CI workflow dependencies

Author: DogmaDragon

.github/workflows/ci.yml

@@ -32,5 +32,6 @@ jobs:
                mkdocs-git-revision-date-localized-plugin \
                mkdocs-git-committers-plugin-2 \
                mkdocs-glightbox \
-               mkdocs-material[imaging]
+               mkdocs-material[imaging] \
+               mkdocs-redirects
       - run: mkdocs gh-deploy --force