[magnum] Transition Stein to EM

This transition the stein 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: I2df9367d6407865171f0e545bd9dd004d8915989

deliverables/stein/magnum-ui.yaml

@@ -10,6 +10,10 @@ releases:
       - hash: c9c8b713e93251eea04bdf5849f9de370c1b5c70
         repo: openstack/magnum-ui
     version: 5.1.0
+  - version: stein-em
+    projects:
+      - repo: openstack/magnum-ui
+        hash: c9c8b713e93251eea04bdf5849f9de370c1b5c70
 branches:
   - location: 5.1.0
     name: stable/stein

deliverables/stein/magnum.yaml

@@ -31,6 +31,10 @@ releases:
     projects:
       - repo: openstack/magnum
         hash: 38a3c879a589d8f73d7912e8fc2f64d7b8c667c0
+  - version: stein-em
+    projects:
+      - repo: openstack/magnum
+        hash: 38a3c879a589d8f73d7912e8fc2f64d7b8c667c0
 branches:
   - location: 8.0.0.0rc1
     name: stable/stein

deliverables/stein/python-magnumclient.yaml

@@ -15,6 +15,10 @@ releases:
       - hash: 37e602d160632a386c2960ec8777bfc65642a9a9
         repo: openstack/python-magnumclient
     version: 2.12.0
+  - version: stein-em
+    projects:
+      - repo: openstack/python-magnumclient
+        hash: 37e602d160632a386c2960ec8777bfc65642a9a9
 branches:
   - location: 2.12.0
     name: stable/stein