[congress] Transition Pike to End of Life

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

This is needed as stable/pike 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/pike 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: I29a4addb54778340a092b9ee713b75778f1695ac

deliverables/pike/congress-dashboard.yaml

@@ -29,6 +29,10 @@ releases:
       - hash: e06651e2023ef50ef827ca8b94429b79866b1b92
         repo: openstack/congress-dashboard
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/congress-dashboard
+        hash: 3284cac89949d1cf529ca6ef39e5551506a34c4b
 branches:
   - location: 1.0.0.0rc1
     name: stable/pike

deliverables/pike/congress.yaml

@@ -38,6 +38,10 @@ releases:
         repo: openstack/congress
         tarball-base: openstack-congress
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/congress
+        hash: 9cf36abc8af30451e9753c5cef33ee5742dc1d7b
 branches:
   - location: 6.0.0.0rc1
     name: stable/pike

deliverables/pike/python-congressclient.yaml

@@ -21,6 +21,10 @@ releases:
       - hash: 5c64747b1561b48a47ddd21505b140e9fd6a6cf5
         repo: openstack/python-congressclient
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/python-congressclient
+        hash: 93dfd7ebed3dd327cc41929e9f065cb9a080a8eb
 branches:
   - name: stable/pike
     location: 1.8.0