feat: update bluebuild to v1.8. switch type: rpm-ostree to new type: dnf, add new native groupinstall support, and cleanup docker repo

- Rename and update obsolete docker-ce_f41.repo file to f42 and update common-modules.yml to reference the new docker-ce.repo.
- Remove old groupinstall scripts.
- Switch rpm-ostree plugin to new dnf plugin for better performance and features
- Add groupinstall functionality to recipe via new dnf plugin

.github/workflows/build.yml

@@ -26,7 +26,7 @@ jobs:
     steps:
        # the build is fully handled by the reusable github action
       - name: Build Custom Image
-        uses: blue-build/github-action@v1.7
+        uses: blue-build/github-action@v1.8
         with:
           recipe: ${{ matrix.recipe }}
           cosign_private_key: ${{ secrets.SIGNING_SECRET }}