ci(gcp): drop fork-skip guard, repo setting already gates fork PRs

Author: james00012

.github/workflows/gcp-integration-tests.yml

@@ -21,10 +21,6 @@ on:
 jobs:
   gcp-integration-tests:
     name: GCP Integration Tests
-    # Skip PRs from forks — repo secrets aren't exposed there.
-    if: >-
-      github.event_name != 'pull_request' ||
-      github.event.pull_request.head.repo.full_name == github.repository
     runs-on: ubuntu-latest
     timeout-minutes: 60
     permissions: