[murano] 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: I9a892d6682b606181a724eead6cb6c150f089f77

deliverables/stein/murano-agent.yaml

@@ -10,6 +10,10 @@ releases:
     projects:
       - repo: openstack/murano-agent
         hash: ce41ef5b782704339ad54c97f129164c6b8e28e3
+  - version: stein-em
+    projects:
+      - repo: openstack/murano-agent
+        hash: ce41ef5b782704339ad54c97f129164c6b8e28e3
 branches:
   - location: 3.6.0
     name: stable/stein

deliverables/stein/murano-dashboard.yaml

@@ -16,6 +16,10 @@ releases:
       - hash: 005f36b347ac0fa590f4dc372d7ba842fa23f836
         repo: openstack/murano-dashboard
     version: 7.0.0
+  - version: stein-em
+    projects:
+      - repo: openstack/murano-dashboard
+        hash: 005f36b347ac0fa590f4dc372d7ba842fa23f836
 branches:
   - location: 7.0.0.0rc1
     name: stable/stein

deliverables/stein/murano.yaml

@@ -23,6 +23,10 @@ releases:
     projects:
       - repo: openstack/murano
         hash: 75a85b0c0c8d810f4b3cc246cc5adf3ba52ec006
+  - version: stein-em
+    projects:
+      - repo: openstack/murano
+        hash: 75a85b0c0c8d810f4b3cc246cc5adf3ba52ec006
 branches:
   - location: 7.0.0.0rc1
     name: stable/stein

deliverables/stein/python-muranoclient.yaml

@@ -11,6 +11,10 @@ releases:
       - hash: ed7a0ee6823806e3b008b75247a273bc8b3d2981
         repo: openstack/python-muranoclient
     version: 1.2.0
+  - version: stein-em
+    projects:
+      - repo: openstack/python-muranoclient
+        hash: ed7a0ee6823806e3b008b75247a273bc8b3d2981
 branches:
   - location: 1.2.0
     name: stable/stein