Review access change

Change-Id: Ib6fd5b982f089cef0b2ad145d26678c4853c1ab2
Reviewed-on: https://go-review.googlesource.com/c/All-Projects/+/218606
Reviewed-by: Filippo Valsorda <filippo@golang.org>

project.config

diff --git a/project.config b/project.config
index bf429a9..9b226d4 100644
--- a/project.config
+++ b/project.config
@@ -104,6 +104,10 @@
 	viewAccess = group gobot
 	viewAllAccounts = group gobot
 	viewAllAccounts = group mdb/copybara-git-readers
+[access "^refs/heads/release-branch(.+)-security$"]
+	forgeAuthor = group release-managers
+	forgeCommitter = group release-managers
+	push = +force group release-managers
 [notify "checkins"]
 	header = to
 	email = golang-checkins@googlegroups.com