[zun] Transition 2023.1 Antelope to Unmaintained

This branch reached the end of its official stable maintained period,
hence this patch transition stable/2023.1 branch to Unmaintained. (For
details about Unmaintained state please see: [1][2])

The transitions is as follows:
- tip of the stable/2023.1 branch is tagged with 2023.1-eom tag
- unmaintained/2023.1 branch will be cut from 2023.1-eom tag
- stable/2023.1 branch will be deleted

Note:
- there will no longer be official releases off of 2023.1 branch after
  this transition
- backports can be pushed to unmaintained/2023.1 branch
- openstack-unmaintained-core (or <project>-unmaintained-core groups if
  such exists) have the rights to merge patches

Important: please +1 if the team is ready for us to proceed with this
transition, or -1 if there are any final 2023.1 Antelope stable release
with backports currently in flight that we should wait for. For the
latter case, please propose a final 2023.1 Antelope stable release
patch, and rebase this patch on top of that, with the latest commit
hash of stable/2023.1.

The planned transition deadline was October 30th, 2024 [3] last week,
so please approve this patch as soon as possible if the project is
ready for the transition.

[1] https://docs.openstack.org/project-team-guide/stable-branches.html#unmaintained
[2] https://governance.openstack.org/tc/resolutions/20230724-unmaintained-branches.html
[3] https://releases.openstack.org

Change-Id: I0f73fe7dd516cc1a53c95d410c676d81416b04a2

deliverables/antelope/python-zunclient.yaml

@@ -11,6 +11,12 @@ releases:
     projects:
       - repo: openstack/python-zunclient
         hash: e5864224476639ac2bc1fcf2e548b1bd0d10e07f
+  - version: 2023.1-eom
+    projects:
+      - repo: openstack/python-zunclient
+        hash: d3993aab037f8e4d31e6b817a538fcbeea6e97b3
 branches:
   - name: stable/2023.1
     location: 4.6.0
+  - name: unmaintained/2023.1
+    location: 2023.1-eom

deliverables/antelope/zun-ui.yaml

@@ -15,7 +15,13 @@ releases:
       - repo: openstack/zun-ui
         hash: 68ad102c424a558bb010c04256e772441af2a3d8
     diff-start: 10.0.0
+  - version: 2023.1-eom
+    projects:
+      - repo: openstack/zun-ui
+        hash: 1f3245c35d518148ed468b195e5faffd5490aa7a
 branches:
   - name: stable/2023.1
     location: 11.0.0.0rc1
+  - name: unmaintained/2023.1
+    location: 2023.1-eom
 release-notes: https://docs.openstack.org/releasenotes/zun-ui/2023.1.html

deliverables/antelope/zun.yaml

@@ -15,7 +15,13 @@ releases:
       - repo: openstack/zun
         hash: c43f423530d32f6ac0c245b996642e7503b6b043
     diff-start: 10.0.0.0rc1
+  - version: 2023.1-eom
+    projects:
+      - repo: openstack/zun
+        hash: 6d4039bc7bc88ecd3caaeee33126ed85e8cf09f0
 branches:
   - name: stable/2023.1
     location: 11.0.0.0rc1
+  - name: unmaintained/2023.1
+    location: 2023.1-eom
 release-notes: https://docs.openstack.org/releasenotes/zun/2023.1.html