Show Python and iPython version before running tests

.github/actions/gui-test/e2e/action.yml

@@ -2,6 +2,9 @@ name: end-to-end test
 runs:
   using: "composite"
   steps:
+    - name: Check Python and iPython versions
+      shell: bash
+      run: pipenv run python --version && pipenv run ipython --version
     - name: install kernel
       shell: bash
       run: pipenv run ipython kernel install --name "python3" --user