Update nightly-tests.yaml

.github/workflows/nightly-tests.yaml

@@ -174,6 +174,7 @@ jobs:
           istio-version: ${{ steps.dotenv.outputs.istio_version }}
           matrix-label: ${{ matrix.version-files.label }}
 
+  # Reminder: when setting up the job next release branch, copy from "end_to_end_tests_main" not the previous release job as configuration may have changed
   end_to_end_tests_17:
     name: End-to-End (branch=v1.17.x, cluster=${{ matrix.test.cluster-name }}, version=${{ matrix.version-files.label }} )
     if: ${{ (github.event_name == 'workflow_dispatch' && inputs.run-kubernetes-end-to-end && inputs.branch == 'v1.17.x') || github.event.schedule == '0 6 * * 1' }}