Fix operator precedence (#1405)

&& binds tighter than ?? so a parentheses is needed for desired result

src/Connection/Factory.php

@@ -175,7 +175,7 @@ class Factory implements FactoryInterface
             );
         }
 
-        if ($parameters->client_info ?? false && !$connection instanceof RelayConnection) {
+        if (($parameters->client_info ?? false) && !$connection instanceof RelayConnection) {
             $connection->addConnectCommand(
                 new RawCommand('CLIENT', ['SETINFO', 'LIB-NAME', 'predis'])
             );