[watcher] 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: I612aa11aba12d77f105d294e4e914e58e3e99091

deliverables/pike/python-watcherclient.yaml

@@ -25,6 +25,10 @@ releases:
       - hash: 4a8cf8445ed34e88a1afae8b3c8028c9d897bbe6
         repo: openstack/python-watcherclient
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/python-watcherclient
+        hash: 3dc382f9cd6e5c5cc4f2843939af93f3292c7904
 branches:
   - name: stable/pike
     location: 1.3.0

deliverables/pike/watcher-dashboard.yaml

@@ -32,6 +32,10 @@ releases:
       - hash: ca1756712322b90efaabd9f297c153bdac09297e
         repo: openstack/watcher-dashboard
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/watcher-dashboard
+        hash: 5db4d9eb8e892dc824c1eea363f875c83e2536c5
 release-notes: https://docs.openstack.org/releasenotes/watcher-dashboard/pike.html
 repository-settings:
   openstack/watcher-dashboard: {}

deliverables/pike/watcher.yaml

@@ -42,5 +42,9 @@ releases:
       - hash: 30d6f07ceba2ac284bf5167e9bacfc6f8572b391
         repo: openstack/watcher
     version: pike-em
+  - version: pike-eol
+    projects:
+      - repo: openstack/watcher
+        hash: 16113e255b65186876faa6e1888339a14dcb909d
 repository-settings:
   openstack/watcher: {}