group-add-member fails with an external member

The command ipa group-add-member --external aduser@addomain.test
fails with an internal error when used with samba 4.19.

The command internally calls samba.security.dom_sid(sid) which
used to raise a TypeError but now raises a ValueError
(commit 9abdd67 on https://github.com/samba-team/samba).

IPA source code needs to handle properly both exception types.

Fixes: https://pagure.io/freeipa/issue/9466

Signed-off-by: Florence Blanc-Renaud <flo@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>

ipaserver/dcerpc.py

@@ -303,7 +303,7 @@ class DomainValidator:
         # Parse sid string to see if it is really in a SID format
         try:
             test_sid = security.dom_sid(sid)
-        except TypeError:
+        except (TypeError, ValueError):
             raise errors.ValidationError(name='sid',
                                          error=_('SID is not valid'))