[solum] 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: If157d15e5f9ca2020d2e1da0e355858f5c9bb24d

deliverables/pike/python-solumclient.yaml

@@ -24,6 +24,10 @@ releases:
       - hash: 6f5d8cf8d870746edfd291f62809c3f725a41e5b
         repo: openstack/python-solumclient
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/python-solumclient
+        hash: cfe6c0b34b307a7f25216113862247a9df6ff0b2
 branches:
   - name: stable/pike
     location: 2.5.0

deliverables/pike/solum-dashboard.yaml

@@ -23,5 +23,9 @@ releases:
       - hash: ba5eb934c2a1fb029edd7774737831658e736188
         repo: openstack/solum-dashboard
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/solum-dashboard
+        hash: a61b95953b3ce30be2eb02e3ace66ae8b5034286
 repository-settings:
   openstack/solum-dashboard: {}

deliverables/pike/solum.yaml

@@ -23,6 +23,10 @@ releases:
       - hash: da251dc710bc45d6c1f86f68f966c466890f5787
         repo: openstack/solum
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/solum
+        hash: fcec9ad3e923a3dc2732a9af474dc30a6024e025
 release-notes: https://docs.openstack.org/releasenotes/solum/pike.html
 repository-settings:
   openstack/solum: {}