Update Gerrit permissions for global service users (built at http://cl/893733512)

Added permissions:
  Section [refs/heads/*]:
    Read:
      ALLOW: SLSA Policy Verification Service Accounts
    label-SLSA-Policy-Verified:
      ALLOW: SLSA Policy Verification Service Accounts

groups

diff --git a/groups b/groups
index 8dd3284..54f65bb 100644
--- a/groups
+++ b/groups
@@ -1,5 +1,6 @@
 # UUID                                                        	Group Name
 #
+3157c2f81e2b727686fefc77b78574ec77273b01                      	SLSA Policy Verification Service Accounts
 fc16cdd071c21660395862c7c23667cc38638aae                      	Core Team
 global:Anonymous-Users                                        	Anonymous Users
 global:Change-Owner                                           	Change Owner

project.config

diff --git a/project.config b/project.config
index a72e600..cca69b9 100644
--- a/project.config
+++ b/project.config
@@ -33,11 +33,13 @@
 	push = group mdb/cerebra-hw
 	push = group mdb/cerebrahw-leads
 	read = group Anonymous Users
+	read = group SLSA Policy Verification Service Accounts
 	revert = group Registered Users
 	submit = group Core Team
 	submit = group Project Owners
 	submit = group mdb/cerebrahw-leads
 	pushMerge = group mdb/cerebrahw-leads
+	label-SLSA-Policy-Verified = -1..+1 group SLSA Policy Verification Service Accounts
 [access "refs/meta/config"]
 	exclusiveGroupPermissions = read
 	create = group Project Owners