Switch CQ to use LUCI

Bug: 860895
TBR=tandrii
Change-Id: I6026dd810284036eb58bfb2cab73d6170f1a3533
Reviewed-on: https://chromium-review.googlesource.com/1224715
Reviewed-by: Ryan Tseng <hinoka@chromium.org>

infra/config/cq.cfg

@@ -16,7 +16,7 @@ verifiers {
 
   try_job {
     buckets {
-      name: "master.tryserver.client.custom_tabs_client"
+      name: "luci.custom-tabs-client.try"
       builders {
         name: "Custom Tabs Linux Tryserver"
       }