[searchlight] 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: Iee82d666e8497c248637e299540efa68b2155177

deliverables/pike/python-searchlightclient.yaml

@@ -20,5 +20,9 @@ releases:
       - hash: 05c49a717ab1203e6dc6d3411f8e36dff099aebe
         repo: openstack/python-searchlightclient
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/python-searchlightclient
+        hash: 85ad3c93ca910eb78d444b6c59d58fa0dbe117e0
 repository-settings:
   openstack/python-searchlightclient: {}

deliverables/pike/searchlight-ui.yaml

@@ -37,5 +37,9 @@ releases:
       - hash: 8825f708df4ff4c863db7c95f0e0cfb044d1affe
         repo: openstack/searchlight-ui
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/searchlight-ui
+        hash: 527a1e9e0abd852f1a1da11c4e85f86a0f9dfb52
 repository-settings:
   openstack/searchlight-ui: {}

deliverables/pike/searchlight.yaml

@@ -36,6 +36,10 @@ releases:
       - hash: 400005bdf7470c06973a1b2f5d4d398dacee5c0d
         repo: openstack/searchlight
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/searchlight
+        hash: b047e29417273c20b526ed3649bde107601a15ca
 release-notes: https://docs.openstack.org/releasenotes/searchlight/pike.html
 repository-settings:
   openstack/searchlight: {}