[congress] Transition Queens to End of Life

This transition the Queens branch to End of Life. The last patch of the
branch will be tagged with queens-eol tag. The stable/queens branch
cannot be used anymore and will be deleted if this patch merges.

This is needed as stable/queens is not actively maintained in the recent
period and thus gates are mostly broken due to job failures. Besides,
by removing these branches, infra resources will be freed up, too.

Please try to identify any zuul job, that is defined outside of the
repositories in this patch (for example in openstack-zuul-jobs, etc.)
and won't be used anymore if stable/queens is deleted, and propose a job
removal patch for them.

Please +1 if the team is ready for us to proceed with this transition,
or -1 if there are still some activity on the branch and the team wants
to continue to maintain it.

Change-Id: If8aab5d3ec29085c17aff7c247dda0f59b7ecda6

deliverables/queens/congress-dashboard.yaml

@@ -30,6 +30,10 @@ releases:
     projects:
       - repo: openstack/congress-dashboard
         hash: e8ef4a7ea090f5e6ee4790bd611e65f53a5e9b75
+  - version: queens-eol
+    projects:
+      - repo: openstack/congress-dashboard
+        hash: bba5004daa5cec4dab47200988282a581aee8681
 repository-settings:
   openstack/congress-dashboard: {}
 branches:

deliverables/queens/congress.yaml

@@ -41,6 +41,10 @@ releases:
     projects:
       - repo: openstack/congress
         hash: dc64fa1c0480407aa3e6f0993623844ff770ccac
+  - version: queens-eol
+    projects:
+      - repo: openstack/congress
+        hash: 3aac30a360ce6644e72ff1bf9a3bf96b37c53aed
 repository-settings:
   openstack/congress:
     tarball-base: openstack-congress

deliverables/queens/python-congressclient.yaml

@@ -13,6 +13,10 @@ releases:
     projects:
       - repo: openstack/python-congressclient
         hash: a8ec6c85255b94e997ce42fe60afed51e0517882
+  - version: queens-eol
+    projects:
+      - repo: openstack/python-congressclient
+        hash: 50eddf98f7126a6d9e25ae635749907bc9b29255
 branches:
   - name: stable/queens
     location: 1.9.0