migrate ci to direct kaniko push

.forgejo/workflows/container.yml

@@ -18,23 +18,18 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Build Container
-        # env:
-        #   KANIKO_NO_PUSH: ${{ forgejo.ref_name != 'main' }}
+        env:
+          KANIKO_NO_PUSH: ${{ forgejo.ref_name != 'main' }}
+          KANIKO_GIT_HAMBURG_CCC_DE_USER: forgejo-actions
+          KANIKO_GIT_HAMBURG_CCC_DE_PASSWORD: ${{ secrets.PACKAGES_TOKEN }}
         run: /kaniko/executor
           --dockerfile="${{forgejo.workspace }}/Containerfile"
           --context="dir://${{ forgejo.workspace }}"
           --destination=git.hamburg.ccc.de/ccchh/dooris:latest
-          --tar-path=${{ forgejo.workspace }}/image.tar
-          --no-push
           --no-push-cache
+          --credential-helpers=env
           --annotation=org.opencontainers.image.ref.name=dooris
           --annotation=org.opencontainers.image.url=${{ forgejo.server_url }}/${{ forgejo.repository }}
           --annotation=org.opencontainers.image.source=${{ forgejo.server_url }}/${{ forgejo.repository }}
           --annotation=org.opencontainers.image.licenses=AGPL-3.0
 
-      - name: Push Container (prod-only)
-        if: ${{ forgejo.ref_name == 'main' }}
-        run: |
-          apk add --no-cache skopeo
-          skopeo copy "docker-archive:${{ forgejo.workspace }}/image.tar" docker://git.hamburg.ccc.de/ccchh/dooris:latest --dest-creds="forgejo-actions:${{ secrets.PACKAGES_TOKEN }}"
-