workaround not having a release to read the version from

Author: svix-onelson

.github/workflows/webhook-bridge-release.yml

@@ -25,9 +25,10 @@ jobs:
         uses: docker/setup-buildx-action@v2
 
       - name: Derive Version Numbers
+        # FIXME: don't have a release name when running on a branch push - hardcode to 0.0.0 for now
         run: |
           export REPO="${{ secrets.DOCKERHUB_USERNAME }}/svix-webhook-bridge"
-          echo DOCKER_TAGS="$(echo "${{ github.event.release.tag_name }}" | sed -E "s#v([0-9]+)\.([0-9]+)\.([0-9]+)#${REPO}:latest,${REPO}:v\1.\2.\3,${REPO}:v\1.\2,${REPO}:v\1#")" >> "$GITHUB_ENV"
+          echo DOCKER_TAGS="$(echo "v0.0.0" | sed -E "s#v([0-9]+)\.([0-9]+)\.([0-9]+)#${REPO}:latest,${REPO}:v\1.\2.\3,${REPO}:v\1.\2,${REPO}:v\1#")" >> "$GITHUB_ENV"
 
       - name: Build and push Docker image
         uses: docker/build-push-action@v2