Update tests-outerloop.yml run frequency (#8540)

Author: RussKie

.github/workflows/tests-outerloop.yml

@@ -4,7 +4,7 @@ name: Outerloop Tests
 on:
   workflow_dispatch:
   schedule:
-    - cron: '0 14 * * *' # 6am PST (14:00 UTC)
+    - cron: '0 */2 * * *' # Every 2 hours
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}