Run signed LAN integration separately from other network tests

tests/run_tests.py

@@ -17,6 +17,7 @@ EXCLUSIVE = {
     "test_uasync_load": "check CPU/wall-time limits",
     "test_local_transport": "isolate the LAN discovery port",
     "test_local_transport_packets": "isolate the LAN discovery port",
+    "test_local_routes": "isolate the LAN discovery port",
 }
 EXCLUSIVE.update({name + ".exe": reason for name, reason in list(EXCLUSIVE.items())})