ci: skip vlib/v2/types/checker_test.v on windows for now

Author: spytheman

vlib/v2/types/checker_test.v

@@ -1,6 +1,7 @@
 // Copyright (c) 2026 Alexander Medvednikov. All rights reserved.
 // Use of this source code is governed by an MIT license
 // that can be found in the LICENSE file.
+// vtest build: !windows
 module types
 
 import os