[masakari] Transition Zed to Unmaintained

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

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

Note:
- there will no longer be official releases off of zed branch after this
  transition
- backports can be pushed to unmaintained/yoga 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 Zed stable release with
backports currently in flight that we should wait for. For the latter
case, please propose a final Zed stable release patch, and rebase this
patch on top of that, with the latest commit hash of stable/zed.

The transition deadline is May 2nd, 2024. [3]

[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: I18fcbcacd063dfcc30bea90feca8c053e5f491b0

deliverables/zed/masakari-dashboard.yaml

@@ -16,7 +16,14 @@ releases:
       - repo: openstack/masakari-dashboard
         hash: 83a8ea2363ebceda1911259ec95cfc7b7fe0bf89
     diff-start: 6.0.0
+  - version: zed-eom
+    projects:
+      - repo: openstack/masakari-dashboard
+        hash: 339560b21aef3ae8ff5d2b6395dbb60efd09c4ec
 branches:
   - name: stable/zed
     location: 7.0.0.0rc1
-release-notes: https://docs.openstack.org/releasenotes/masakari-dashboard/zed.html
+  - name: unmaintained/zed
+    location: zed-eom
+release-notes:
+  https://docs.openstack.org/releasenotes/masakari-dashboard/zed.html

deliverables/zed/masakari-monitors.yaml

@@ -15,7 +15,13 @@ releases:
       - repo: openstack/masakari-monitors
         hash: afcf34decc7dc55adc55ab366e03fbf472cd52ad
     diff-start: 13.0.0
+  - version: zed-eom
+    projects:
+      - repo: openstack/masakari-monitors
+        hash: 475ec0447a21f7d54279fe3056d69135be6fad4b
 branches:
   - name: stable/zed
     location: 14.0.0.0rc1
+  - name: unmaintained/zed
+    location: zed-eom
 release-notes: https://docs.openstack.org/releasenotes/masakari-monitors/zed.html

deliverables/zed/masakari.yaml

@@ -27,7 +27,13 @@ releases:
     projects:
       - repo: openstack/masakari
         hash: 6a48417607dccc3f3e60f617e4a5efbc61a81931
+  - version: zed-eom
+    projects:
+      - repo: openstack/masakari
+        hash: 6a48417607dccc3f3e60f617e4a5efbc61a81931
 branches:
   - name: stable/zed
     location: 14.0.0.0rc1
+  - name: unmaintained/zed
+    location: zed-eom
 release-notes: https://docs.openstack.org/releasenotes/masakari/zed.html

deliverables/zed/python-masakariclient.yaml

@@ -10,7 +10,14 @@ releases:
     projects:
       - repo: openstack/python-masakariclient
         hash: 9ddb79eaba26cf8b00b262918096ae65e2284451
+  - version: zed-eom
+    projects:
+      - repo: openstack/python-masakariclient
+        hash: 893e0cf5680d3f2addbb2b8702ff1dbbc49bd436
 branches:
   - name: stable/zed
     location: 8.0.0
-release-notes: https://docs.openstack.org/releasenotes/python-masakariclient/zed.html
+  - name: unmaintained/zed
+    location: zed-eom
+release-notes:
+  https://docs.openstack.org/releasenotes/python-masakariclient/zed.html