Add hinoka@ to depot_tools OWNERS

BUG=

Review URL: https://codereview.chromium.org/874763002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@294095 0039d316-1c4b-4281-b951-d872f2087c98

OWNERS

@@ -3,12 +3,13 @@ agable@chromium.org
 bradnelson@google.com
 cmp@chromium.org
 dpranke@chromium.org
+hinoka@chromium.org
 iannucci@chromium.org
 jochen@chromium.org
 maruel@chromium.org
 maruel@google.com
-pgervais@chromium.org
 petermayo@chromium.org
+pgervais@chromium.org
 rogerta@chromium.org
 stip@chromium.org
 szager@chromium.org