Add a step to print the results to the log

For debugging.

Author: mhucka

.github/workflows/_find_changes.yaml

@@ -74,3 +74,9 @@ jobs:
           filters: |
             matched:
               - '**/*.py'
+
+      - name: Summary of test results
+        run: |
+          set -x
+          echo steps.only-noncode-files.outputs.matched = │${{steps.only-noncode-files.outputs.matched}}│
+          echo steps.python-files.outputs.matched = │${{steps.python-files.outputs.matched}}│