Ability to manage Collaborators (users and teams)

[actuarysailor]

Is your feature request related to a problem? Please describe.
Mostly a feature, but also kind of a bug.

• Feature because I do not see option to add/remove users or teams as collaborators.
• Bug because if you do not have the users/teams added as collaborators, adding them as exceptions to rules on branch protection policy does nothing - e.g. the action won't fail, but the users/teams won't get added

Describe the solution you'd like
Ability to specify users and teams to add as collaborators in the settings.yaml

Describe alternatives you've considered
Other repos / GitHub actions - honestly I looked, and yours is the best one out there.

Additional context
None - I may help code this as well.

[andrewthetechie]

As long as pygithub supports this api operation, it should be fairly straightforward to add this.

[actuarysailor]

@andrewthetechie - I agree; only caveat is when I was debugging why the Policy requirements wouldn't sync, I noticed they are using some old methods or incorrect REST API command types. Note the "checks" box will be replacing "contexts" on the policies in the future.

[actuarysailor]

@andrewthetechie - doesn't look like its supported by pyGitHub - also in looking at the REST API documentation, it doesn't support the roles: