gh-87604: Avoid publishing list of active per-interpreter audit hooks via the gc module (GH-99373)

Lib/test/audit-tests.py

@@ -450,6 +450,17 @@ def test_syslog():
     syslog.closelog()
 
 
+def test_not_in_gc():
+    import gc
+
+    hook = lambda *a: None
+    sys.addaudithook(hook)
+
+    for o in gc.get_objects():
+        if isinstance(o, list):
+            assert hook not in o
+
+
 if __name__ == "__main__":
     from test.support import suppress_msvcrt_asserts