fix tags (hopefully)

.github/workflows/docker-image.yml

@@ -26,7 +26,7 @@ jobs:
         context: .
         file: ./container/base/Dockerfile
         push: true
-        tags: ${{ secrets.REGISTRY_USERNAME }}/stadtratmonitor:base-latest
+        tags: code.cozy.town/codeforleipzig/stadtratmonitor:latest-base
 
     - name: Build and push Deploy image
       uses: docker/build-push-action@v2
@@ -34,7 +34,7 @@ jobs:
         context: .
         file: ./container/deploy/Dockerfile
         push: true
-        tags: ${{ secrets.REGISTRY_USERNAME }}/stadtratmonitor:deploy-latest
+        tags: code.cozy.town/codeforleipzig/stadtratmonitor:latest-deploy
 
     - name: Build and push Develop image
       uses: docker/build-push-action@v2
@@ -42,7 +42,7 @@ jobs:
         context: .
         file: ./container/develtop/Dockerfile
         push: true
-        tags: ${{ secrets.REGISTRY_USERNAME }}/stadtratmonitor:develop-latest
+        tags: code.cozy.town/codeforleipzig/stadtratmonitor:latest-develop
 
     - name: Build and push Test image
       uses: docker/build-push-action@v2
@@ -50,4 +50,4 @@ jobs:
         context: .
         file: ./container/test/Dockerfile
         push: true
-        tags: ${{ secrets.REGISTRY_USERNAME }}/stadtratmonitor:test-latest
+        tags: code.cozy.town/codeforleipzig/stadtratmonitor:latest-test