Fix a few bugs in run_example_ci_config tooling (#2577)

* Fix a few bugs in run_example_ci_config tooling

Github-deploy.yml had a fix to make it work out-of-the-box.

* Add flaky marker on test_ssl

(due to external internet access during the test, it does occasionally fail)

examples/github-deploy.yml

@@ -98,5 +98,6 @@ jobs:
           merge-multiple: true
 
       - uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          # To test: repository-url: https://test.pypi.org/legacy/
+        # To test uploads to TestPyPI, uncomment the following:
+        # with:
+        #   repository-url: https://test.pypi.org/legacy/