Internal change

PiperOrigin-RevId: 723576356

Author: deannagarcia

.github/workflows/test_release_branches.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        branch: [25.x, 29.x]
+        branch: [25.x, 29.x, 30.x]
     runs-on: ubuntu-latest
     permissions:
       actions: write