Add labels based of the pull request author

[inikolaev]

I have a use-case with a common repository in which many different teams are contributing and I would like to set a label based on team the person belongs to.

The way I see it can be done is very similar to the file globs, but need to somehow distinguish between file globs and user handles:

label-to-apply:
 - user1
 - user2
 - user3

[jpbriggs408]

+1

[drummerjolev]

+1. Would be super useful

[zacharymctague]

+1. Would be great for teams too.

[k-sav]

+1

[drummerjolev]

This may be helpful for some of you: https://github.com/marketplace/actions/team-label-action

[tillydray]

I am going to take a stab at this, seems straightforward but any help is appreciated. Also if someone else is already working on this, let me know

[sgowroji]

+1

[morrijm4]

+1