Gemfile.lock: update net-ldap to fix LDAP authentication issues
Created by: davvid
Newer LDAP servers fail with the old version of net-ldap. Update our version to the fixed one.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Created by: davvid
Newer LDAP servers fail with the old version of net-ldap. Update our version to the fixed one.