ci: match release pull requests by the Release Please branch prefix

Author: kvlonge

.github/workflows/verify.yml

@@ -871,7 +871,7 @@ jobs:
     name: >-
       ${{ (github.event_name == 'pull_request'
       && github.event.pull_request.head.repo.full_name == github.repository
-      && startsWith(github.event.pull_request.head.ref, 'release-please--'))
+      && startsWith(github.event.pull_request.head.ref, 'release-please--branches--'))
       && 'Release pull request suites' || 'Verify' }}
     if: always()
     needs:

tests/unit/scripts/release_gate/_helpers/test_gate.py

@@ -19,7 +19,7 @@
 RELEASE_AWARE_NAME: str = (
     "${{ (github.event_name == 'pull_request'"
     " && github.event.pull_request.head.repo.full_name == github.repository"
-    " && startsWith(github.event.pull_request.head.ref, 'release-please--'))"
+    " && startsWith(github.event.pull_request.head.ref, 'release-please--branches--'))"
     " && 'Release pull request suites' || 'Verify' }}"
 )