[test] Update to test cicd pipeline

Changed the trigger for the workflow to push on the 'ci/night' branch instead of a scheduled cron job.

Author: stratika

.github/workflows/night-test.yml

@@ -1,8 +1,8 @@
 name: JDK Matrix Build & Full Tests
 
 on:
-  schedule:
-    - cron: '0 2 * * *'  # 2 AM UTC daily
+  push:
+    branches: [ci/night]
   workflow_dispatch:
 
 jobs: