chore(test): add debug print for force close balance assertion

Investigating flaky channel_full_cycle_force_close failure on Core 29.
Prints node_a lightning_balances and pending_balances before assertion
at mod.rs:1324 to determine if balance moved to pending prematurely.

Author: febyeji

tests/common/mod.rs

@@ -1321,6 +1321,11 @@ pub(crate) async fn do_channel_full_cycle<E: ElectrumApi>(
 		assert_eq!(node_b.list_balances().pending_balances_from_channel_closures.len(), 1);
 
 		// Check node_a properly sees all balances and sweeps them.
+		let balances_a = node_a.list_balances();
+		println!(
+			"DEBUG node_a balances before assertion: lightning={:?}, pending={:?}",
+			balances_a.lightning_balances, balances_a.pending_balances_from_channel_closures
+		);
 		assert_eq!(node_a.list_balances().lightning_balances.len(), 1);
 		match node_a.list_balances().lightning_balances[0] {
 			LightningBalance::ClaimableAwaitingConfirmations {