fix conditional in docker push workflow

Author: tinyzimmer

.github/workflows/test_and_build.yaml

@@ -76,7 +76,7 @@ jobs:
       uses: docker/build-push-action@v2
       with:
         context: .
-        push: ${{ github.event_name != 'pull_request' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v*')) }}
+        push: ${{ github.event_name != 'pull_request' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v')) }}
         tags: ghcr.io/pelotech/jsonnet-controller:${{ steps.version.outputs.tag }}
         cache-from: type=local,src=/tmp/.buildx-cache
         cache-to: type=local,dest=/tmp/.buildx-cache-new