workflows: update rule

.github/workflows/docker.yml

@@ -20,6 +20,7 @@ jobs:
     permissions:
       contents: read
       packages: write
+      id-token: write
 
     steps:
       - name: Checkout repository
@@ -51,8 +52,8 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: .
-          push: true
+          push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
-          cache-to: type=gha,mode=max
+          cache-to: type=gha,mode=max