Description of problem:

Ansible 2.16 deprecated ANSIBLE_COLLECTIONS_PATHS while Ansible 2.19 has removed it. The replacement ANSIBLE_COLLECTIONS_PATH was added in Ansible 2.10.

How reproducible:

Performing any ansible roles

Is this issue a regression from an earlier version:

No

Steps to Reproduce:

1. Satellite WebUI -> Hosts -> All Hosts -> Select one host

2. Click over 'Edit' button -> Click over 'Ansible Roles' tab

3. Associate any ansible roles available to the host -> Click over 'Submit' button

4. On top right, click over the sign near from 'Schedule a job' and click over 'Run Ansible roles'

5. Satellite WebUI -> Monitor -> Jobs -> click over your 'Run ansible roles' -> click over your host

Actual behavior:

Showing the message: 
[DEPRECATION WARNING]: ANSIBLE_CALLBACK_WHITELIST option, normalizing names to new standard, use ANSIBLE_CALLBACKS_ENABLED instead. This feature will be removed from ansible-core in version 2.15. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
 
Expected behavior:
It doesn't show this kind of message

Business Impact / Additional info:

Low

The bug has already been fixed by upstream in this issue: Installer sets up deprecated ANSIBLE_COLLECTIONS_PATHS env var instead of ANSIBLE_COLLECTIONS_PATH