Test build-docker CI stage

.forgejo/workflows/build-jekyll.yml

@@ -15,3 +15,12 @@ jobs:
         with:
           name: generated-site
           path: _site/
+  build_and_push_container:
+    runs-on: docker
+    container:
+      image: git.hswro.org/fleg/hswro_org:latest
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+      - run: find
+      - run: podman version