[senlin] 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: I0aff1b575de1759ef2e91497b0f96faae35a310b

deliverables/pike/python-senlinclient.yaml

@@ -23,6 +23,10 @@ releases:
       - hash: 52bce9d14566c8e0d22832c472a341e09ab67910
         repo: openstack/python-senlinclient
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/python-senlinclient
+        hash: 304f88d132d3851aca4e10e27f984a4dee9de373
 team: senlin
 type: library
 repository-settings:

deliverables/pike/senlin-dashboard.yaml

@@ -20,6 +20,10 @@ releases:
       - hash: 8f151eae8a57d69b0a8baf21be0f4094203c6795
         repo: openstack/senlin-dashboard
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/senlin-dashboard
+        hash: a7097c1c583e6bb7ac924bb3d4ca8e8208c9ad74
 release-notes: https://docs.openstack.org/releasenotes/senlin-dashboard/pike.html
 repository-settings:
   openstack/senlin-dashboard: {}

deliverables/pike/senlin.yaml

@@ -33,6 +33,10 @@ releases:
       - hash: 6e4824a698ad125fd14a7ae99a7ae366158adc83
         repo: openstack/senlin
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/senlin
+        hash: 0db09c3e98c3f33c3c0df6b0dc3cdf9fc3b1700c
 branches:
   - location: 4.0.0.0rc1
     name: stable/pike