want to try github actions without python 3.6

[dleskosky]

No description provided.

[pep8speaks]

Hello @dleskosky! Thanks for opening this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file setup.py:

Line 42:13: E265 block comment should start with '# '

[salesforce-cla]

Thanks for the contribution! Unfortunately we can't verify the commit author(s): Daniel Leskosky <d***@d***.i***.s***.com>. One possible solution is to add that email to your GitHub account. Alternatively you can change your commits to another email and force push the change. After getting your commits associated with your GitHub account, sign the Salesforce.com Contributor License Agreement and this Pull Request will be revalidated.