[murano] Transition Train to EM

This transition the train 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: Ic9ec45b9bde1102006e897f676a1c85d1c13ba4e

deliverables/train/murano-agent.yaml

@@ -15,6 +15,10 @@ releases:
       - repo: openstack/murano-agent
         hash: a026aa2e2f38bcfe072fb9cdfa6e9719f6fda5c6
     diff-start: 3.6.0
+  - version: train-em
+    projects:
+      - repo: openstack/murano-agent
+        hash: a026aa2e2f38bcfe072fb9cdfa6e9719f6fda5c6
 branches:
   - name: stable/train
     location: 4.0.0.0rc1

deliverables/train/murano-dashboard.yaml

@@ -20,6 +20,10 @@ releases:
       - repo: openstack/murano-dashboard
         hash: bead4366d96a1e6e230e8f147b97a60e859f760b
     diff-start: 7.0.0
+  - version: train-em
+    projects:
+      - repo: openstack/murano-dashboard
+        hash: bead4366d96a1e6e230e8f147b97a60e859f760b
 branches:
   - location: 8.0.0.0rc1
     name: stable/train

deliverables/train/murano.yaml

@@ -23,6 +23,10 @@ releases:
     projects:
       - repo: openstack/murano
         hash: 4f698865318df4e72b7521aaad34fc0d2ff22dac
+  - version: train-em
+    projects:
+      - repo: openstack/murano
+        hash: 4f698865318df4e72b7521aaad34fc0d2ff22dac
 branches:
   - name: stable/train
     location: 8.0.0.0rc1

deliverables/train/python-muranoclient.yaml

@@ -11,6 +11,10 @@ releases:
     projects:
       - repo: openstack/python-muranoclient
         hash: 2f501776a607db3862ce89dbaf22c9d48e7e7f87
+  - version: train-em
+    projects:
+      - repo: openstack/python-muranoclient
+        hash: 2f501776a607db3862ce89dbaf22c9d48e7e7f87
 branches:
   - location: 1.3.0
     name: stable/train