[zaqar] Transition Stein to End of Life

As announced on mailing list [1], this patch transitions the Stein
branch to End of Life. The last patch of the branch will be tagged with
stein-eol tag. stable/stein branch cannot be used anymore and will be
deleted if this patch merges.

This is needed as stable/stein 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/stein 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-September/034965.html

Change-Id: Idd5a96156aa933c0edcc81c1b582ea5e04f8aff0

deliverables/stein/python-zaqarclient.yaml

@@ -15,7 +15,12 @@ releases:
     projects:
       - repo: openstack/python-zaqarclient
         hash: 13e90a0ab5e296fb8cf21d09c666c06ed47a84c0
+  - version: stein-eol
+    projects:
+      - repo: openstack/python-zaqarclient
+        hash: b03370d55ddb3ff8164c21af75d176e46679f199
 branches:
   - location: 1.11.0
     name: stable/stein
-release-notes: https://docs.openstack.org/releasenotes/python-zaqarclient/stein.html
+release-notes:
+  https://docs.openstack.org/releasenotes/python-zaqarclient/stein.html

deliverables/stein/zaqar-ui.yaml

@@ -20,6 +20,10 @@ releases:
     projects:
       - repo: openstack/zaqar-ui
         hash: fb7ffcb8cdfc07ebcbd3fd25145e788d5b8f3fdb
+  - version: stein-eol
+    projects:
+      - repo: openstack/zaqar-ui
+        hash: 89036deeb40847fed53d192f81d4afaa7f2c36fe
 branches:
   - location: 6.0.0.0rc1
     name: stable/stein

deliverables/stein/zaqar.yaml

@@ -23,6 +23,10 @@ releases:
     projects:
       - repo: openstack/zaqar
         hash: a5752f84dd3b31f7b0087756c0bd906ef428ac42
+  - version: stein-eol
+    projects:
+      - repo: openstack/zaqar
+        hash: 2350af4389fbd5fc8cfa74d04e059eef22da7b34
 branches:
   - location: 8.0.0.0rc1
     name: stable/stein