Only push on tags

.gitea/workflows/build.yaml

@@ -71,10 +71,12 @@ jobs:
           SOURCE_DATE_EPOCH: ${{ env.TIMESTAMP }}
 
       - name: Kustomize manifests
+        if: gitea.ref_type == 'tag'
         run: |
           ./kustomize build ./manifests | sed "s/\${DIGEST}/${{ steps.build.outputs.digest }}/" > ./manifests.yaml
 
       - name: Push manifests
+        if: gitea.ref_type == 'tag'
         run: |
           flux push artifact oci://$OCI_REPO/manifests:latest \
             --path="./manifests.yaml" \