Merge pull request #21 from natrontech/feat/jfu-2

ci: improve cleanup action

Author: janfuhrer

.github/workflows/cleanup.yml

@@ -11,9 +11,11 @@ jobs:
   clean:
     runs-on: ubuntu-latest
     name: Delete old test images
+    permissions:
+      packages: write
     steps:
     - name: cleanup ghcr
-      uses: snok/[email protected]
+      uses: snok/container-retention-policy@4f22ef80902ad409ed55a99dc5133cc1250a0d03 # v3.0.0
       with:
         account: natrontech
         token: ${{ secrets.GITHUB_TOKEN }}