ci: temporarily disable lima farm

The lab is currently experiencing network instability with the ISP.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23623>

.gitlab-ci.yml

@@ -33,7 +33,7 @@ variables:
   FD_FARM: "offline"
   COLLABORA_FARM: "online"
   MICROSOFT_FARM: "online"
-  LIMA_FARM: "online"
+  LIMA_FARM: "offline"
   IGALIA_FARM: "online"
   ANHOLT_FARM: "online"
   VALVE_FARM: "online"