[adjutant] Transition Yoga to Unmaintained

With the new TC resolution the community replaces Extended Maintenance
with Unmaintained status [1].

So this patch transitions stable/yoga branch to Unmaintained as follows:
- tip of the stable/yoga branch is tagged with yoga-eom tag
- unmaintained/yoga branch will be cut from yoga-eom tag
- stable/yoga branch will be deleted

Some further notes:
- there will no longer be official releases off of yoga branch
- backports can be pushed against unmaintained/yoga branch
- openstack-unmaintained-core and <project>-unmaintained-core groups
  will have the rights to merge patches

For further details please read the resolution [1] & review and +1 this
patch if this is correct as soon as possible.

[1] https://governance.openstack.org/tc/resolutions/20230724-unmaintained-branches.html

Change-Id: Ica89a8395713909993e276fcc05b8f654f4c26ed

deliverables/yoga/adjutant-ui.yaml

@@ -16,6 +16,12 @@ releases:
       - repo: openstack/adjutant-ui
         hash: 104c474479e9a89d22b96777378ff59983c03393
     diff-start: 3.0.0
+  - version: yoga-eom
+    projects:
+      - repo: openstack/adjutant-ui
+        hash: 4464d9cb53beb1f5b14a51c49a84fc0efe925aec
 branches:
   - name: stable/yoga
     location: 4.0.0.0rc1
+  - name: unmaintained/yoga
+    location: yoga-eom

deliverables/yoga/adjutant.yaml

@@ -16,6 +16,12 @@ releases:
       - repo: openstack/adjutant
         hash: b305d7285f3ea2e12210e592702c4d66a31d6646
     diff-start: 3.0.0
+  - version: yoga-eom
+    projects:
+      - repo: openstack/adjutant
+        hash: d9ddbd6d3e5aec42a8bc6b2e26c20f16c92b38a4
 branches:
   - name: stable/yoga
     location: 4.0.0.0rc1
+  - name: unmaintained/yoga
+    location: yoga-eom

deliverables/yoga/python-adjutantclient.yaml

@@ -11,6 +11,12 @@ releases:
     projects:
       - repo: openstack/python-adjutantclient
         hash: 20d234bc370056184a0885e6e6f735db056668a2
+  - version: yoga-eom
+    projects:
+      - repo: openstack/python-adjutantclient
+        hash: 20d234bc370056184a0885e6e6f735db056668a2
 branches:
   - name: stable/yoga
     location: 0.10.0
+  - name: unmaintained/yoga
+    location: yoga-eom