Create pr_without_tool_change.yaml

.github/workflows/pr_without_tool_change.yaml

@@ -0,0 +1,15 @@
+name: Fallback
+# Fallback workflow that provides a succeeding "Check workflow success" job
+# as this is a requirement for being able to merge a PR
+# see https://docs.github.com/en/repositories/configuring-branches-and-merges-in-your-repository/defining-the-mergeability-of-pull-requests/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+on:
+  pull_request:
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+jobs:
+  determine-success:
+    name: Check workflow success
+    runs-on: ubuntu-latest
+    steps:
+      -  run: 'echo "No tool tests required for this PR"'