Fix GitHub Actions for Docker images (#30)

.github/workflows/docker-image.yml → .github/workflows/docker-image-build.yml

@@ -27,9 +27,6 @@ jobs:
             type=ref,event=tag,priority=2000
             type=ref,event=pr,priority=1900
             type=ref,event=branch,priority=1800
-            type=raw,value=insiders
-            type=raw,value=insiders-{{date 'YYYY-MM-DD-HH-mm-ss'}}
-            type=sha
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3

.github/workflows/docker-image-cleanup.yml

@@ -0,0 +1,18 @@
+name: Cleanup old Docker Images from GitHub Container Registry
+
+on:
+  workflow_dispatch: # Creates button in web UI to run the workflow manually, shouldn't be needed
+  schedule:
+    - cron: '0 0 * * *' # Run at 00:00 UTC every day
+
+jobs:
+  cleanup:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Delete old untagged packages
+        uses: actions/delete-package-versions@v5
+        with:
+          package-name: implementation-bridge-repo-converter
+          package-type: container
+          min-versions-to-keep: 10
+          ignore-versions: '^v\d+\.\d+\.\d+$'