Merge pull request lightningdevkit#510 from tnull/2025-03-test-log-print-cfg

Have the mock log facade not always print to `stdout`

Author: tnull

tests/common/logging.rs

@@ -48,7 +48,6 @@ impl LogFacadeLog for MockLogFacadeLogger {
 			record.line().unwrap(),
 			record.args()
 		);
-		println!("{message}");
 		self.logs.lock().unwrap().push(message);
 	}