Add forgotten awaits

Author: robsdedude

neo4j/_async_compat/network/_bolt_socket.py

@@ -274,20 +274,20 @@ async def _handshake(self, resolved_address):
             # If no data is returned after a successful select
             # response, the server has closed the connection
             log.debug("[#%04X]  S: <CLOSE>", local_port)
-            self.close()
+            await self.close()
             raise ServiceUnavailable(
                 "Connection to {address} closed without handshake response".format(
                     address=resolved_address))
         if data_size != 4:
             # Some garbled data has been received
             log.debug("[#%04X]  S: @*#!", local_port)
-            self.close()
+            await self.close()
             raise BoltProtocolError(
                 "Expected four byte Bolt handshake response from %r, received %r instead; check for incorrect port number" % (
                 resolved_address, data), address=resolved_address)
         elif data == b"HTTP":
             log.debug("[#%04X]  S: <CLOSE>", local_port)
-            self.close()
+            await self.close()
             raise ServiceUnavailable(
                 "Cannot to connect to Bolt service on {!r} "
                 "(looks like HTTP)".format(resolved_address))