[wallet] [tests] Add keypool topup functional test

test/functional/test_runner.py

@@ -79,6 +79,7 @@ BASE_SCRIPTS= [
     'rawtransactions.py',
     'reindex.py',
     # vv Tests less than 30s vv
+    'keypool-topup.py',
     'zmq_test.py',
     'mempool_resurrect_test.py',
     'txn_doublespend.py --mineblock',