make testing placeholder for now

.github/workflows/scheduled_testing.yml

@@ -12,20 +12,19 @@
 # Mainly on a schedule of 9:00, 13:00, 18:00 UTC everyday.
 # Manual trigger can also test on demand
 
-name: Scheduled Testing
+name: Scheduled Testing [ placeholders]
 
 on:
-  schedule:
-    - cron: '0 9,13,18 * * *' # 9:00, 13:00, 18:00 UTC
-
   workflow_dispatch: # for manual triggering
 
+
 # no special access is needed
 permissions: read-all
 
 jobs:
   run_tests:
-    uses: dbt-labs/actions/.github/workflows/release-branch-tests.yml@main
-    with:
-      workflows_to_run: '["ci_tests.yml", "build.yml", "ci_dbt_core_testing.yml"]'
-    secrets: inherit
+    runs-on: ubuntu-latest
+    steps:
+
+      - name: Placeholder
+        run: echo "This is a placeholder job"