only deploy on tags

Author: stefan-as

.github/workflows/build_and_deploy.yml

@@ -24,6 +24,7 @@ jobs:
   deploy-staging:
     name: "Deploy 🚜️"
     runs-on: "ubuntu-latest"
+    if: "startsWith(github.ref, 'refs/tags/')"
     needs:
       - "build"
     steps: