[freezer] 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: I1b1f4753c8a87dcdde0d74c2f0221606aa309464

deliverables/stein/freezer-web-ui.yaml

@@ -15,6 +15,10 @@ releases:
     projects:
       - repo: openstack/freezer-web-ui
         hash: 3207b575a159fc6c21206eca91565c9372c9c622
+  - version: stein-eol
+    projects:
+      - repo: openstack/freezer-web-ui
+        hash: b17f3801555119cc46f1134e6727d65e49e7d516
 team: freezer
 type: horizon-plugin
 repository-settings:

deliverables/stein/freezer.yaml

@@ -26,6 +26,14 @@ releases:
         hash: b52291b7e6a1d468f479168f89396d9feaf95568
       - repo: openstack/freezer-dr
         hash: 1e687a499363dd912c69e2628a6ccc523c74f39c
+  - version: stein-eol
+    projects:
+      - repo: openstack/freezer
+        hash: c83cc63e8853e3ece92232d0b751b8b585e42e99
+      - repo: openstack/freezer-api
+        hash: 38faebb523b6ac4bd9f5848a5d4fb78f147734f1
+      - repo: openstack/freezer-dr
+        hash: 46ed6d74b69bace95aa7dd44b5517d361f18f7bd
 team: freezer
 type: service
 repository-settings:

deliverables/stein/python-freezerclient.yaml

@@ -19,7 +19,12 @@ releases:
     projects:
       - repo: openstack/python-freezerclient
         hash: cc92d7cc2cf35ed791d29879b2aed5b08e6bf4e0
+  - version: stein-eol
+    projects:
+      - repo: openstack/python-freezerclient
+        hash: 04824ac4de93496b73d2cac54bc4f30f51c8c211
 branches:
   - location: 2.1.0
     name: stable/stein
-release-notes: https://docs.openstack.org/releasenotes/python-freezerclient/stein.html
+release-notes: 
+  https://docs.openstack.org/releasenotes/python-freezerclient/stein.html