ci: clean old package

Signed-off-by: Larvan2 <78135608+Larvan2@users.noreply.github.com>

.github/workflows/cleanPkg.yml

@@ -0,0 +1,16 @@
+name: clean old package
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * 0'
+
+jobs:
+  del_runs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/delete-package-versions@v4
+        with: 
+          package-name: 'metacubexd'
+          package-type: 'container'
+          min-versions-to-keep: 3
+          delete-only-untagged-versions: 'true'