tools: make test.py Queue part Python 3 compatible

Signed-off-by: gengjiawen <technicalcute@gmail.com>

PR-URL: https://github.com/nodejs/node/pull/25701
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>

tools/test.py

@@ -47,7 +47,10 @@ import copy
 
 from os.path import join, dirname, abspath, basename, isdir, exists
 from datetime import datetime
-from Queue import Queue, Empty
+try:
+    from queue import Queue, Empty  # Python 3
+except ImportError:
+    from Queue import Queue, Empty  # Python 2
 
 try:
     cmp             # Python 2