This should fix build failures due to file locking preventing concurrent
access to cli_ure/source/cliuno.snk.

Change-Id: Iefd16ed83a01523b3612844c2f777516dc4e44c6
(cherry picked from commit 01518d3a)
Reviewed-on: https://gerrit.libreoffice.org/19483Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>