Refactor workflow name and remove unnecessary triggers from test selectors

Author: jonrohan

.github/workflows/test-selectors.yml

@@ -1,15 +1,7 @@
-name: Test Selectors
+name: Test
 
 on:
   pull_request:
-  push:
-    branches:
-      - main
-  merge_group:
-    branches:
-      - main
-    types:
-      - checks_requested
 
 permissions:
   contents: read