Update doctest GH workflow file (#21744)

update

Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>

.github/workflows/doctests.yml

@@ -34,6 +34,9 @@ jobs:
         run: |
           python3 utils/print_env.py
 
+      - name: Show installed libraries and their versions
+        run: pip freeze
+
       - name: Prepare files for doctests
         run: |
           python3 utils/prepare_for_doc_test.py src docs