chore: Update schedule_reporter.yml (#286)

Author: dishaprakash

.github/workflows/schedule_reporter.yml

@@ -20,6 +20,10 @@ on:
 
 jobs:
   run_reporter:
-    uses: googleapis/langchain-google-alloydb-pg-python/.github/workflows/cloud_build_failure_reporter.yml@main
+    permissions:
+      issues: 'write'
+      checks: 'read'
+      contents: 'read'
+    uses: googleapis/langchain-google-alloydb-pg-python/.github/workflows/cloud_build_failure_reporter.yml@074f9932a8099256ff210771473badbd2156713b
     with:
       trigger_names: "pg-integration-test-nightly,pg-continuous-test-on-merge"