[Refactor] convert team(s) to apiTeam(s) (#13745)

* Refactor: teams to api convert

* make org load optional

* more info in tests

modules/convert/pull_review.go

@@ -22,10 +22,15 @@ func ToPullReview(ctx context.Context, r *models.Review, doer *user_model.User)
 		r.Reviewer = user_model.NewGhostUser()
 	}
 
+	apiTeam, err := ToTeam(r.ReviewerTeam)
+	if err != nil {
+		return nil, err
+	}
+
 	result := &api.PullReview{
 		ID:                r.ID,
 		Reviewer:          ToUser(r.Reviewer, doer),
-		ReviewerTeam:      ToTeam(r.ReviewerTeam),
+		ReviewerTeam:      apiTeam,
 		State:             api.ReviewStateUnknown,
 		Body:              r.Content,
 		CommitID:          r.CommitID,