[tacker] 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: Id471e12636f7f84f518db3b16009a828b5e76193

deliverables/zed/heat-translator.yaml

@@ -11,6 +11,12 @@ releases:
     projects:
       - repo: openstack/heat-translator
         hash: 82f8b0d9bb82239388de6b42cf374c3f53ccda9d
+  - version: zed-eom
+    projects:
+      - repo: openstack/heat-translator
+        hash: 77876eca124325052404708acc1e945a4acd85c3
 branches:
   - name: stable/zed
     location: 2.6.0
+  - name: unmaintained/zed
+    location: zed-eom

deliverables/zed/python-tackerclient.yaml

@@ -15,7 +15,14 @@ releases:
     projects:
       - repo: openstack/python-tackerclient
         hash: 64d7a876703b98f6fb83d413a8c5c801a5e752d4
+  - version: zed-eom
+    projects:
+      - repo: openstack/python-tackerclient
+        hash: 0368ff69ed7663ad737edfd73eed9f7046370335
 branches:
   - name: stable/zed
     location: 1.12.0
-release-notes: https://docs.openstack.org/releasenotes/python-tackerclient/zed.html
+  - name: unmaintained/zed
+    location: zed-eom
+release-notes:
+  https://docs.openstack.org/releasenotes/python-tackerclient/zed.html

deliverables/zed/tacker-horizon.yaml

@@ -15,6 +15,12 @@ releases:
       - repo: openstack/tacker-horizon
         hash: 24a80d355f29f50069cbac4489b395559f5d2b36
     diff-start: 5.0.0
+  - version: zed-eom
+    projects:
+      - repo: openstack/tacker-horizon
+        hash: 2a7b73daec6fe9a6847f94aa24faca63f9760b51
 branches:
   - name: stable/zed
     location: 6.0.0.0rc1
+  - name: unmaintained/zed
+    location: zed-eom

deliverables/zed/tacker.yaml

@@ -27,7 +27,13 @@ releases:
       - repo: openstack/tacker
         hash: 7ef5b78601cb4a65804b6ea8de5e2e75428ff0e0
     diff-start: 7.0.0.0rc1
+  - version: zed-eom
+    projects:
+      - repo: openstack/tacker
+        hash: 7ef5b78601cb4a65804b6ea8de5e2e75428ff0e0
 branches:
   - name: stable/zed
     location: 8.0.0.0rc1
+  - name: unmaintained/zed
+    location: zed-eom
 release-notes: https://docs.openstack.org/releasenotes/tacker/zed.html

deliverables/zed/tosca-parser.yaml

@@ -11,6 +11,12 @@ releases:
     projects:
       - repo: openstack/tosca-parser
         hash: 88796c0072ce2d217c1eca49b512d2ee8cbbc08c
+  - version: zed-eom
+    projects:
+      - repo: openstack/tosca-parser
+        hash: e83a52340e866e1d862f6935d580f8d9bb3e3d5b
 branches:
   - name: stable/zed
     location: 2.6.0
+  - name: unmaintained/zed
+    location: zed-eom