allow deletion

Signed-off-by: Mete Fatih Cırıt <mfc@autoware.org>

Author: xmfcx

.github/workflows/keep-build-cache-small.yaml

@@ -68,7 +68,7 @@ jobs:
         if: steps.check_threshold.outputs.status == 'exceeded'
         run: |
           echo "🗑️ Deleting build cache image: ${{ env.BUILD_CACHE_IMAGE }}..."
-          # skopeo delete docker://${{ env.BUILD_CACHE_IMAGE }}
+          skopeo delete docker://${{ env.BUILD_CACHE_IMAGE }}
 
       - name: Verify cache deletion
         if: steps.check_threshold.outputs.status == 'exceeded'