[autoroll] Add another service account to frontend whitelist

Bug: skia:8769
Change-Id: I4d52ec1c9d7ad56350e6241548cd9e22a64f6ca8
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/201371
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Eric Boren <borenet@google.com>
diff --git a/autoroll/go/autoroll-fe/main.go b/autoroll/go/autoroll-fe/main.go
index 4ed368f..fc81174 100644
--- a/autoroll/go/autoroll-fe/main.go
+++ b/autoroll/go/autoroll-fe/main.go
@@ -56,6 +56,7 @@
 		"skia-status-internal@skia-public.iam.gserviceaccount.com",
 		"status@skia-buildbots.google.com.iam.gserviceaccount.com",
 		"status-internal@skia-buildbots.google.com.iam.gserviceaccount.com",
+		"showy-dashboards@prod.google.com",
 	}
 
 	mainTemplate   *template.Template = nil