gfe-relnote: Replace the usage of ConnectionData::encryption_level in quic_time_wait_list_manager with a new TimeWaitAction SEND_CONNECTION_CLOSE_PACKETS. Protected by gfe2_restart_flag_replace_time_wait_list_encryption_level. ConnectionData::encryption_level can be deprecated after this change. PiperOrigin-RevId: 308152741 Change-Id: I877573f632b8c99fc740f803252fa9c6f5a08f79