Fix recipe autoroller account.

R=ehmaldonado@chromium.org,apolito@google.com

Change-Id: I804488c86b864d330be8b667c64f58f3541f0197
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2149851
Auto-Submit: Robbie Iannucci <iannucci@chromium.org>
Reviewed-by: Anthony Polito <apolito@google.com>
Commit-Queue: Anthony Polito <apolito@google.com>

infra/config/OWNERS

@@ -3,4 +3,5 @@ iannucci@chromium.org
 nodir@chromium.org
 
 per-file recipes.cfg=martiniss@chromium.org
-per-file recipes.cfg=recipe-roller@chromium.org
+per-file recipes.cfg=recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com
+

recipes/recipe_modules/OWNERS

-recipe-roller@chromium.org
+recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com