Allow protected access in super_check.py

edx_lint/pylint/super_check.py

@@ -87,6 +87,7 @@ class UnitTestSetupSuperChecker(BaseChecker):
                 # base = super()
                 # base.__init__(...)
 
+                # pylint: disable=protected-access
                 if (isinstance(klass, astroid.Instance) and
                         isinstance(klass._proxied, astroid.Class) and
                         utils.is_builtin_object(klass._proxied) and