tandrii: switch OWNERS to @google.com account.

R=tikuta
TBR=tandrii@chromium.org

Change-Id: I8ce4eb78e8ec2cf4c6d816b8a5ca63dbb0de66c6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2411985Reviewed-by: Andrii Shyshkalov <tandrii@google.com>
Reviewed-by: Takuto Ikuta <tikuta@chromium.org>

LUCI_OWNERS

@@ -2,6 +2,5 @@ chanli@chromium.org
 ddoman@chromium.org
 iannucci@chromium.org
 nodir@chromium.org
-tandrii@chromium.org
 tandrii@google.com
 vadimsh@chromium.org

recipes/OWNERS

 iannucci@chromium.org
-tandrii@chromium.org
+tandrii@google.com
 
 per-file README.recipes.md=*

recipes/recipe_modules/bot_update/OWNERS

-tandrii@chromium.org
+tandrii@google.com
 ehmaldonado@chromium.org

recipes/recipe_modules/gitiles/OWNERS

 smut@google.com
-tandrii@chromium.org
+tandrii@google.com