modify debug output for test(s)

Addresses:
  #56 (comment)

Changes:
 1. remove test environment detection in ::get_latest_balance_height()
 2. decorate wallet_state_prune_abandoned_mutxos() with #[traced_test]

The net effect is that:
 1. The decorated test case will display debug!() log output.
 2. Any other test cases will not.

src/models/state/mod.rs

@@ -98,12 +98,8 @@ impl GlobalState {
         let (height, time_secs) =
             time_fn_call_async(self.get_latest_balance_height_internal()).await;
 
-        #[cfg(not(test))]
         debug!("call to get_latest_balance_height() took {time_secs} seconds");
 
-        #[cfg(test)]
-        println!("call to get_latest_balance_height() took {time_secs} seconds");
-
         height
     }
 

src/models/state/wallet/wallet_state.rs

@@ -823,6 +823,7 @@ impl WalletState {
 #[cfg(test)]
 mod tests {
     use num_traits::One;
+    use tracing_test::traced_test;
 
     use crate::{
         config_models::network::Network,
@@ -833,6 +834,7 @@ mod tests {
     use super::*;
 
     #[tokio::test]
+    #[traced_test]
     async fn wallet_state_prune_abandoned_mutxos() {
         // Get genesis block. Verify wallet is empty
         // Add two blocks to state containing no UTXOs for own wallet