Add several changes to Instance Groups Add several changes to API and UI related to Instance Groups. * Update summary_fields for DEFAULT_CONTROL_PLANE_QUEUE_NAME, and DEFAULT_EXECUTION_QUEUE_NAME. Rely on API validation for those fields. * Fix Instance Group list RBAC * Add validation for a couple of fields on the Instance Groups endpoint 1. is_container_group 2. policy_instance_percentage 3. policy_instance_list See: https://github.com/ansible/awx/issues/11130 Also: https://github.com/ansible/awx/issues/11718