updated tagged unittests

Author: tomasstupka

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

@@ -1,6 +1,7 @@
 *graalpython.lib-python.3.test.test_operator.CCOperatorPickleTestCase.test_attrgetter
 *graalpython.lib-python.3.test.test_operator.CCOperatorPickleTestCase.test_itemgetter
 *graalpython.lib-python.3.test.test_operator.CCOperatorPickleTestCase.test_methodcaller
+*graalpython.lib-python.3.test.test_operator.COperatorTestCase.test___all__
 *graalpython.lib-python.3.test.test_operator.COperatorTestCase.test_abs
 *graalpython.lib-python.3.test.test_operator.COperatorTestCase.test_add
 *graalpython.lib-python.3.test.test_operator.COperatorTestCase.test_attrgetter