SPIKE: PR Auto-assigning for code reviewers

[derekadombek]

We need to come up with an efficient way for PRs to auto-assign the appropriate reviewers depending on who's creating the PR.

Acceptance Criteria
enabled auto assigned reviewer with possibly a custom GHA

Additional context
The challenging part about this one is that we have two teams in one repo. Do we want both teams to be auto-assigned as reviews for each PR(easiest option) or should divide it according to team, to quiet the notification noise(If members eventually switch teams, this could get annoying)?

We should be able to divide with a codeowners file