Change checkpoint_utils_test to a `tf_py_test`.

Fixes breaking windows builds.

PiperOrigin-RevId: 458053689
diff --git a/tensorflow/python/checkpoint/BUILD b/tensorflow/python/checkpoint/BUILD
index c45276d..e63f6e0 100644
--- a/tensorflow/python/checkpoint/BUILD
+++ b/tensorflow/python/checkpoint/BUILD
@@ -158,7 +158,7 @@
     ],
 )
 
-py_test(
+tf_py_test(
     name = "checkpoint_util_test",
     srcs = ["checkpoint_util_test.py"],
     deps = [