[mistral] 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: Id60935680bda62f47eefb7b2a26d68f9ab2359c2

deliverables/ussuri/mistral-dashboard.yaml

@@ -20,6 +20,10 @@ releases:
       - repo: openstack/mistral-dashboard
         hash: 9c19e28c218f50682a735772f4ad3ee616f65368
     diff-start: 9.0.0.0rc1
+  - version: ussuri-em
+    projects:
+      - repo: openstack/mistral-dashboard
+        hash: 9c19e28c218f50682a735772f4ad3ee616f65368
 branches:
   - name: stable/ussuri
     location: 10.0.0.0rc1

deliverables/ussuri/mistral-extra.yaml

@@ -15,6 +15,10 @@ releases:
     projects:
       - repo: openstack/mistral-extra
         hash: b615bd4b48a97e8f90dc64cd89e890cc2e688a43
+  - version: ussuri-em
+    projects:
+      - repo: openstack/mistral-extra
+        hash: b615bd4b48a97e8f90dc64cd89e890cc2e688a43
 branches:
   - name: stable/ussuri
     location: 10.0.1

deliverables/ussuri/mistral-lib.yaml

@@ -23,6 +23,10 @@ releases:
       - repo: openstack/mistral-lib
         hash: 44a27384601113cdc5068940d07b85a003ed2211
     version: 2.1.0
+  - version: ussuri-em
+    projects:
+      - repo: openstack/mistral-lib
+        hash: 44a27384601113cdc5068940d07b85a003ed2211
 branches:
   - name: stable/ussuri
     location: 2.1.0

deliverables/ussuri/mistral.yaml

@@ -28,6 +28,10 @@ releases:
       - repo: openstack/mistral
         hash: 545a34c7511b6e6b5f1b59ca99891684303b4480
     diff-start: 9.0.0.0rc1
+  - version: ussuri-em
+    projects:
+      - repo: openstack/mistral
+        hash: 545a34c7511b6e6b5f1b59ca99891684303b4480
 branches:
   - name: stable/ussuri
     location: 10.0.0.0rc1

deliverables/ussuri/python-mistralclient.yaml

@@ -15,6 +15,10 @@ releases:
     projects:
       - repo: openstack/python-mistralclient
         hash: 0f09c1e8cb090a7aa4f08f76dabaf3fb79f608bf
+  - version: ussuri-em
+    projects:
+      - repo: openstack/python-mistralclient
+        hash: 0f09c1e8cb090a7aa4f08f76dabaf3fb79f608bf
 branches:
   - name: stable/ussuri
     location: 4.0.1