Revert "ci: disable Collabora's farm due to maintance"

This reverts commit fcce9cc835be3bbfe3285ef89d5dc4ceb5e7e7bc.

Signed-off-by: Sergi Blanch Torne <sergi.blanch.torne@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27427>
1 file changed