Minor build fix

Author: optout21

lightning/src/ln/channelmanager.rs

@@ -6370,7 +6370,7 @@ where
 				let mut peer_state_lock = peer_state_mutex.lock().unwrap();
 				let peer_state = &mut *peer_state_lock;
 				for (chan_id, chan) in peer_state.channel_by_id.iter_mut().filter_map(
-					|(chan_id, channel)| channel.get_funded_channel().map(|chan| (chan_id, chan))
+					|(chan_id, channel)| if let ChannelPhase::Funded(chan) = channel.phase_mut() { Some((chan_id, chan)) } else { None }
 				) {
 					let new_feerate = if chan.context.get_channel_type().supports_anchors_zero_fee_htlc_tx() {
 						anchor_feerate