fix: fix windows missing ModuleNotFoundError: No module named 'tzdata.zoneinfo'; 'tzdata' is not a package

Author: fatelei

Lib/test/test_zoneinfo/test_zoneinfo.py

@@ -1551,6 +1551,10 @@ def __eq__(self, other):
         except CustomError:
             pass
 
+    @unittest.skipUnless(
+        lambda: any(os.path.exists(os.path.join(p, 'UTC')) for p in ZoneInfo.tzpath),
+        "timezone data not available"
+    )
     def test_weak_cache_descriptor_use_after_free(self):
         from zoneinfo import ZoneInfo