Disable cancel_stale for mac_chromium_compile_dbg_ng

Bug:1056387
TEST=main.star

Change-Id: Ia6b598fc8f906fcea73cb36b5c03f22fbb7be053
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2401940
Commit-Queue: Xinan Lin <linxinan@chromium.org>
Reviewed-by: Garrett Beaty <gbeaty@chromium.org>
Cr-Commit-Position: refs/heads/master@{#805416}

infra/config/generated/commit-queue.cfg

@@ -1334,6 +1334,7 @@ config_groups {
       }
       builders {
         name: "chromium/try/mac_chromium_compile_dbg_ng"
+        cancel_stale: NO
         location_regexp: ".*"
         location_regexp_exclude: ".+/[+]/docs/.+"
         location_regexp_exclude: ".+/[+]/infra/config/.+"

infra/config/subprojects/chromium/try.star

@@ -1159,7 +1159,7 @@ try_.chromium_mac_builder(
     goma_jobs = goma.jobs.J150,
     os = os.MAC_10_13,
     main_list_view = settings.main_list_view_name,
-    tryjob = try_.job(),
+    tryjob = try_.job(cancel_stale = False),
 )
 
 try_.chromium_mac_builder(