[karbor] Transition Ussuri to EM

This transition the ussuri branch to extended maintenance.
Changes for bugfixes and things the team deems important are
still encouraged, but there will no longer be official releases
off of the branch.

Please +1 if the team is ready for us to proceed with this
transition, or -1 if there are any final backports currently in
flight that we should wait for. For the latter case, please
update the patch with the new commit hash after doing a final
release to get those changes out so we know to proceed with the
transition.

Change-Id: I604f3668471cdeb8768be4e285d1444c253537fe

deliverables/ussuri/karbor-dashboard.yaml

@@ -13,6 +13,10 @@ releases:
         hash: af0f54f7e490bc88505754d30be90eeb2aa5792e
     flags:
       - forced
+  - version: ussuri-em
+    projects:
+      - repo: openstack/karbor-dashboard
+        hash: af0f54f7e490bc88505754d30be90eeb2aa5792e
 branches:
   - name: stable/ussuri
     location: 1.4.0

deliverables/ussuri/karbor.yaml

@@ -12,6 +12,10 @@ releases:
         hash: 7fc2b1055753b283d8bda21cb85adf560e58c476
     flags:
       - forced
+  - version: ussuri-em
+    projects:
+      - repo: openstack/karbor
+        hash: 7fc2b1055753b283d8bda21cb85adf560e58c476
 branches:
   - name: stable/ussuri
     location: 1.5.0

deliverables/ussuri/python-karborclient.yaml

@@ -15,6 +15,10 @@ releases:
     projects:
       - repo: openstack/python-karborclient
         hash: 6ded5189ba5deb55ebf389206e11e045b22bf969
+  - version: ussuri-em
+    projects:
+      - repo: openstack/python-karborclient
+        hash: 6ded5189ba5deb55ebf389206e11e045b22bf969
 branches:
   - name: stable/ussuri
     location: 2.0.0