add GitHub URL for PyPi (#1012)

add GitHub URL for PyPi

Warehouse now uses the project_urls provided to display links in the sidebar on this screen, as well as including them in API responses to help the automation tool find the source code for Requests.
Example: pypi.org/pypi/requests/json
Docs: packaging.python.org/en/latest/guides/distributing-packages-using-setuptools/#project-urls

Reviewed-by: David Shrewsbury <None>

setup.cfg

@@ -4,6 +4,8 @@ author = Ansible, Inc.
 author_email = info@ansible.com
 summary = "Consistent Ansible Python API and CLI with container and process isolation runtime capabilities"
 home_page = https://ansible-runner.readthedocs.io
+project_urls =
+    Source = https://github.com/ansible/ansible-runner
 description_file = README.md
 description_content_type = text/markdown
 license_file = LICENSE.md