project.config: permit relui to use TryBot-Bypass vote

Relui will now bypass trybots when it is safe to do so, such as when
mailing CLs that modify only the VERSION file content in the main Go
repo. Relui runs tests itself with the new VERSION file content, and
builders override VERSION file content anyway, so trybots produce no
useful signal in that case.

We didn't grant this access previously because it was unused.

For go.dev/issue/73614.

Change-Id: I0124f47b3d9d4bf27d37d64f038a58aabd1017e0
Reviewed-on: https://go-review.googlesource.com/c/All-Projects/+/679635
Reviewed-by: Carlos Amedee <carlos@golang.org>

project.config

diff --git a/project.config b/project.config
index 0c31865..271b718 100644
--- a/project.config
+++ b/project.config
@@ -51,6 +51,7 @@
 	label-TryBot-Result = -1..+1 group gobot
 	removeLabel-TryBot-Result = -1..+1 group cria/project-golang-may-start-trybots
 	label-TryBot-Bypass = +0..+1 group cria/project-golang-approvers
+	label-TryBot-Bypass = +0..+1 group gobot
 	label-LUCI-TryBot-Result = -1..+1 group luci_scoped_account
 	removeLabel-LUCI-TryBot-Result = -1..+1 group cria/project-golang-may-start-trybots
 	label-Commit-Queue = +0..+2 group mdb/golang-release-eng-policy