[blazar] 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: Ibb50fe08f0766b4cf61308355032b6dc0f6e69e8

deliverables/stein/blazar-dashboard.yaml

@@ -19,7 +19,12 @@ releases:
     projects:
       - repo: openstack/blazar-dashboard
         hash: ee10b2c5c195088ec14725b790c17289ad20ed63
+  - version: stein-eol
+    projects:
+      - repo: openstack/blazar-dashboard
+        hash: 99da0142c53f5bd4e8efcf5b661658ec9cae48f1
 branches:
   - location: 1.3.0
     name: stable/stein
-release-notes: https://docs.openstack.org/releasenotes/blazar-dashboard/stein.html
+release-notes: 
+  https://docs.openstack.org/releasenotes/blazar-dashboard/stein.html

deliverables/stein/blazar-nova.yaml

@@ -17,6 +17,10 @@ releases:
     projects:
       - repo: openstack/blazar-nova
         hash: 1fdb0eabdae270cda12c35a829867d52a7250d28
+  - version: stein-eol
+    projects:
+      - repo: openstack/blazar-nova
+        hash: 334965654ba3ce5a62a25ede5250c2e2c05c064d
 branches:
   - location: 1.2.0
     name: stable/stein

deliverables/stein/blazar.yaml

@@ -23,6 +23,10 @@ releases:
     projects:
       - repo: openstack/blazar
         hash: 6bbad1bc79eb2f9535e58f0c9ff19669eaac1373
+  - version: stein-eol
+    projects:
+      - repo: openstack/blazar
+        hash: 3db2b43e9bec4d3250c3c504e19d6ab7aac33311
 branches:
   - location: 3.0.0.0rc1
     name: stable/stein

deliverables/stein/python-blazarclient.yaml

@@ -15,7 +15,12 @@ releases:
     projects:
       - repo: openstack/python-blazarclient
         hash: 7a7461cf0265b8280df26574cd2ecfceb7cb346d
+  - version: stein-eol
+    projects:
+      - repo: openstack/python-blazarclient
+        hash: a40f5eaf29bc6da871743f1fb3a332b3ccfa3e23
 branches:
   - location: 2.1.0
     name: stable/stein
-release-notes: https://docs.openstack.org/releasenotes/python-blazarclient/stein.html
+release-notes: 
+  https://docs.openstack.org/releasenotes/python-blazarclient/stein.html