only postsubmit on main

dhairs · dhairs · commit b5328a4d760e · 2025-08-13T17:25:11.000-05:00
diff --git a/.github/workflows/postsubmit.yml b/.github/workflows/postsubmit.yml
@@ -1,6 +1,9 @@
 name: Postsubmit
 run-name: Postsubmit run
-on: push
+on:
+  push:
+    branches:
+      - main
 jobs:
   bazel-build-test:
     runs-on: ubuntu-latest
