gh-111201: Skip pyrepl Windows tests earlier

Don't attempt to load pyrepl Windows console if platforms others than
Windows. For example, the import can fail if ctypes is missing.

Author: vstinner

Lib/test/test_pyrepl/test_windows_console.py

@@ -1,6 +1,11 @@
-import itertools
 import sys
 import unittest
+
+if sys.platform != 'win32':
+    raise unittest.SkipTest("test only relevant on win32")
+
+
+import itertools
 from _pyrepl.console import Event, Console
 from _pyrepl.windows_console import (
     MOVE_LEFT,
@@ -23,7 +28,6 @@
     pass
 
 
-@unittest.skipIf(sys.platform != "win32", "Test class specifically for Windows")
 class WindowsConsoleTests(TestCase):
     def console(self, events, **kwargs) -> Console:
         console = WindowsConsole()