fix: register referral operations for administrators

src/Payment/ReferralAttribution.php

@@ -389,7 +389,7 @@ final class ReferralAttribution {
 	}
 
 	public function can_manage_codes(): bool {
-		return current_user_can('manage_users');
+		return current_user_can('edit_users');
 	}
 
 	public function rest_me(): \WP_REST_Response {