[tacker] Transition Rocky to End of Life

As discussed in the mail thread [1][2], this patch transition the Rocky
branch to End of Life. The last patch of the branch will be tagged with
rocky-eol tag. stable/rocky branch cannot be used anymore and will be
deleted if this patch merges.

This is needed as stable/rocky is not actively maintained in recent
period, 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/rocky is deleted. 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.

[1] https://lists.openstack.org/pipermail/openstack-discuss/2023-January/031922.html
[2] https://lists.openstack.org/pipermail/openstack-discuss/2023-April/033386.html

Change-Id: Ie40139e9befa29fa1384caf4ed06568173956b87

deliverables/rocky/python-tackerclient.yaml

@@ -23,6 +23,10 @@ releases:
     projects:
       - repo: openstack/python-tackerclient
         hash: 71897e549f4f97db3df66522562fb8c702c379f6
+  - version: rocky-eol
+    projects:
+      - repo: openstack/python-tackerclient
+        hash: f9378b58a8c55058ff02d12ebf05a503d1487e50
 branches:
   - name: stable/rocky
     location: 0.14.0

deliverables/rocky/tacker-horizon.yaml

@@ -15,5 +15,9 @@ releases:
     projects:
       - repo: openstack/tacker-horizon
         hash: b701cb4d494cd05a409915aa7a455670f1b30dc6
+  - version: rocky-eol
+    projects:
+      - repo: openstack/tacker-horizon
+        hash: dd77f0758ec2f9bc31b81dbbe40e9c17a89fc733
 repository-settings:
   openstack/tacker-horizon: {}

deliverables/rocky/tacker.yaml

@@ -15,6 +15,10 @@ releases:
     projects:
       - repo: openstack/tacker
         hash: 5987ad8c56a61e3a6d8fcf37a2557926c585de41
+  - version: rocky-eol
+    projects:
+      - repo: openstack/tacker
+        hash: 24f6db6f5c90f0b6ef909e52b47f6d20eb5a7ec8
 cycle-highlights:
   - VNF Forwarding Graph support for Network Service. Operators can
     describe VNFFGD inside NSD to define the network connections among