fix(dnsmasq): push container on PR build for testing

Author: cardoe

.github/workflows/containers.yaml

@@ -111,7 +111,7 @@ jobs:
         with:
           context: "{{defaultContext}}:containers/dnsmasq"
           file: Dockerfile
-          push: ${{ github.event_name != 'pull_request' }}
+          push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}