Update Windows Python3 prebuilt

Fusion2: http://fusion2/e1653ce5-a00b-4501-8f0f-1cb270563905
GCS path: gs://ndk-kokoro-release-artifacts/prod/ndk/python3/windows_release/4/20220830-004242
Prebuilt updated using: ndk/scripts/update_kokoro_prebuilts.py

Test: Treehugger, Kokoro presubmit
Bug: 244197859
Change-Id: I7e3cb5b8add31fd59e4085dba550c6fb436f1ed8
diff --git a/Lib/asyncio/windows_events.py b/Lib/asyncio/windows_events.py
index 5e7cd79..da81ab4 100644
--- a/Lib/asyncio/windows_events.py
+++ b/Lib/asyncio/windows_events.py
@@ -1,5 +1,10 @@
 """Selector and proactor event loops for Windows."""
 
+import sys
+
+if sys.platform != 'win32':  # pragma: no cover
+    raise ImportError('win32 only')
+
 import _overlapped
 import _winapi
 import errno