Archive, don’t delete contact lists

So we keep a record of who first uploaded a list it’s better to archive
a list than completely delete it.

The list in the database doesn’t contain any recipient info so this
isn’t a change to what data we’re retaining.

This means updating the endpoints that get contact lists to exclude ones
that are archived.

tests/app/dao/test_service_contact_list_dao.py

@@ -4,6 +4,11 @@ from tests.app.db import create_service_contact_list
 
 def test_dao_get_contact_lists(notify_db_session):
     contact_list = create_service_contact_list()
+    create_service_contact_list(
+        service=contact_list.service,
+        archived=True,
+    )
+
     fetched_list = dao_get_contact_lists(contact_list.service_id)
 
     assert len(fetched_list) == 1