Grant robot account chrome-cherry-picker@chops-service-accounts.iam.gserviceaccount.com owners exemption.

Bug:418761984
Change-Id: I444abaf8508e441c75182222b810727b1e418e31
diff --git a/code-owners.config b/code-owners.config
index 89550ee..dd2fcf8 100644
--- a/code-owners.config
+++ b/code-owners.config
@@ -4,3 +4,7 @@
 	pathExpressions = SIMPLE
 	disabled = false
 	fallbackCodeOwners = ALL_USERS
+
+	# Implementation bug: b/405060931
+	# Security review bug: b/403244734
+	exemptedUser = chrome-cherry-picker@chops-service-accounts.iam.gserviceaccount.com