tests: fix test_mac_ver on M1 macs

Lib/test/test_platform.py

@@ -248,15 +248,11 @@ class PlatformTest(unittest.TestCase):
             self.assertEqual(res[1], ('', '', ''))
 
             if sys.byteorder == 'little':
-                self.assertIn(res[2], ('i386', 'x86_64'))
+                self.assertIn(res[2], ('i386', 'x86_64', 'arm64'))
             else:
                 self.assertEqual(res[2], 'PowerPC')
 
 
-    # TODO: RUSTPYTHON
-    if sys.platform == "darwin":
-        test_mac_ver = unittest.expectedFailure(test_mac_ver)
-
     # TODO: RUSTPYTHON
     @unittest.expectedFailure
     @unittest.skipUnless(sys.platform == 'darwin', "OSX only test")