ci(e2e): run checks for settings integration PRs

Allow focused child PRs to receive normal CI before the completed suite returns to staging.

Author: Bill Leoutsakos

.github/workflows/ci.yml

@@ -4,7 +4,7 @@ on:
   push:
     branches: [main, staging, dev]
   pull_request:
-    branches: [main, staging, dev]
+    branches: [main, staging, dev, e2e/settings-playwright]
     # Docs content and markdown don't affect the app build or images; push
     # runs stay unfiltered because they feed the deploy pipeline.
     paths-ignore: