Fixed server address in Arrow Flight server

Author: hlee12

tabpy/tabpy_server/app/app.py

@@ -97,7 +97,7 @@ def _get_arrow_server(self, config):
             scheme = "grpc+tls"
             tls_certificates = self._get_tls_certificates(config)
 
-        host = "localhost"
+        host = "0.0.0.0"
         port = config.get(SettingsParameters.ArrowFlightPort)
         location = "{}://{}:{}".format(scheme, host, port)