Introduce issue_trigger_flow flag to the metadata

Author: veraakarthikbharadwaj

.github/workflows/template-register.yaml

@@ -24,4 +24,5 @@ jobs:
         check_run_name: ${{ github.workflow }}
         head_sha: ${{ github.event.client_payload.sha }}
         event_type: ${{ github.event.client_payload.event_type }}
-        branch: ${{ github.event.client_payload.user_config.sandbox_scan.branch }}
+        branch: ${{ github.event.client_payload.user_config.sandbox_scan.branch }}
+        issue_trigger_flow: ${{ github.event.client_payload.user_config.issue_trigger_flow }}