selftest: Use self.assertRaisesLdbError() in user_account_control.py test

selftest: Use self.assertRaisesLdbError() in user_account_control.py test

This changes most of the simple pattern with self.samdb.modify()
to use the wrapper.  Some other calls still need to be converted, while
the complex decision tree tests should remain as-is for now.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Oct  4 21:55:43 UTC 2021 on sn-devel-184