OpenStack release-test ACLs inherit meta-config

As a first step toward automation for branch deletion, have the
OpenStack Release Team's release-test project ACL inherit from the
openstack/meta-config project which grants them branch deletion
access. In order to not affect the openstack/releases project
initially, split release-test out to have a separate ACL. This
change can be reverted once we're ready to proceed with adding this
inheritance to all openstack/ namespace ACLs.

Change-Id: I9cd3b31c41b9dc35c06db83f45e9ed70e09249dc

gerrit/acls/openstack/release-test.config

@@ -0,0 +1,22 @@
+[access]
+inheritFrom = openstack/meta-config
+
+[access "refs/heads/*"]
+abandon = group releases-core
+label-Code-Review = -2..+2 group releases-core
+label-PTL-Approved = +0..+1 group Continuous Integration Tools
+label-Workflow = -1..+1 group releases-core
+
+[label "PTL-Approved"]
+copyAllScoresOnTrivialRebase = true
+defaultValue = 0
+function = NoOp
+value = 0 Abstain
+value = +1 Approved by PTL
+
+[receive]
+requireChangeId = true
+requireContributorAgreement = true
+
+[submit]
+mergeContent = true

gerrit/projects.yaml

@@ -4982,7 +4982,6 @@
   acl-config: /home/gerrit2/acls/openstack/retired.config
 - project: openstack/release-test
   description: Package for testing OpenStack release tools.
-  acl-config: /home/gerrit2/acls/openstack/releases.config
   use-storyboard: true
   groups:
     - release