[GR-23280] skip a test in test_builtins

Author: timfel

graalpython/com.oracle.graal.python.test/src/tests/unittest_tags/test_builtin.txt

@@ -60,6 +60,7 @@
 *graalpython.lib-python.3.test.test_builtin.PtyTests.test_input_tty
 *graalpython.lib-python.3.test.test_builtin.PtyTests.test_input_tty_non_ascii
 *graalpython.lib-python.3.test.test_builtin.PtyTests.test_input_tty_non_ascii_unicode_errors
+*graalpython.lib-python.3.test.test_builtin.ShutdownTest.test_cleanup
 *graalpython.lib-python.3.test.test_builtin.TestBreakpoint.test_breakpoint
 *graalpython.lib-python.3.test.test_builtin.TestBreakpoint.test_breakpoint_with_args_and_keywords
 *graalpython.lib-python.3.test.test_builtin.TestBreakpoint.test_breakpoint_with_breakpointhook_reset

graalpython/lib-python/3/test/test_builtin.py

@@ -1989,6 +1989,7 @@ def test_baddecorator(self):
 
 class ShutdownTest(unittest.TestCase):
 
+    @impl_detail("finalization", graalvm=False)
     def test_cleanup(self):
         # Issue #19255: builtins are still available at shutdown
         code = """if 1: