2.0 branch installs both Python 3.6 and 3.8

[mikerenfro]

In the RHEL/CentOS/Rocky 8 releases, Ansible 2.9 explicitly depends on Python 3.6

[root@sms CRI_XCBC]# dnf deplist ansible
Last metadata expiration check: 0:02:38 ago on Mon 04 Apr 2022 02:24:07 PM UTC.
package: ansible-2.9.27-1.el8.noarch
  dependency: /usr/bin/python3.6
...

but we're explicitly installing various Python 3.8 tools alongside it. Need to determine which of those tools are really required, and if there are Python 3.6 equivalents for them.