[autotest] Add CIPD uprev to push

This is a hack, but our entire deploy process is a hack.  Doing it
properly requires moving all of our deployment code out of Autotest at
the very least.

BUG=chromium:793064
TEST=None

Change-Id: Ib43d4ecea118145ba01c8050c0be08df446d4703
Reviewed-on: https://chromium-review.googlesource.com/823192
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Allen Li <ayatane@chromium.org>
Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>
Reviewed-by: Paul Hobbs <phobbs@google.com>
diff --git a/site_utils/automated_deploy.py b/site_utils/automated_deploy.py
index f131c53..4f83293 100755
--- a/site_utils/automated_deploy.py
+++ b/site_utils/automated_deploy.py
@@ -197,6 +197,9 @@
     if not options.skip_chromite:
         repos.update({'chromite': options.chromite_hash})
 
+    print 'Moving CIPD prod ref to prod-next'
+    subprocess.check_call('''\
+        cipd set-ref chromiumos/infra/lucifer -version prod-next -ref prod''')
     try:
         # update_log saves the git log of the updated repo.
         update_log = ''