Require review from other code owner

[Anton-4]

The way to go seems to be to:

• set up CODEOWNERS
• require one review for the trunk branch
• require reviews from CODEOWNERS

The CODEOWNERS file should be set up to have at least two trusted contributors as code owners per folder.
That way every PR will be reviewed by a (different) trusted contributor.

• Verify settings by trying to merge PR with review from someone who is not a code owner.

[BrianHicks]

I'd like to set up a group like @roc-lang/rbt-reviewers for this. @rtfeldman what do you think? Based on activity so far, it'd maybe be you, me, and @bhansconnect?

[BrianHicks]

ping @rtfeldman! I'm about to open another PR assigning basically this group. Would it make sense or shall we skip it?

[rtfeldman]

rbt-reviewers sounds good! 👍

[BrianHicks]

Would you mind creating that group? I can set CODEOWNERS up afterwards but I am not a member of the roc-lang org with sufficient permissions to make a group.