Skip ASan tests on NoGIL builds

Author: StanFromIreland

Lib/test/test_capi/test_mem.py

@@ -183,6 +183,7 @@ class PyMemDefaultTests(PyMemDebugTests):
 
 
 @requires_subprocess()
+@support.requires_gil_enabled()
 @unittest.skipUnless(support.check_sanitizer(address=True),
                      'need address sanitizer')
 class AddressSanitizerTests(unittest.TestCase):