Create new release of puppet-nova for ussuri and train

Both ussuri and train releases includes some features
and fix needed for CentOS8-stream.

Change-Id: I18430d8571f8f44c45e4159194afa82e045f019e

deliverables/train/puppet-nova.yaml

@@ -30,6 +30,10 @@ releases:
     projects:
       - repo: openstack/puppet-nova
         hash: 655027005c95b4146ab4e6cb5a70290a9e6881db
+  - version: 15.7.0
+    projects:
+      - repo: openstack/puppet-nova
+        hash: 4e737f79cd30c5c8d3fc01043a5dcb7aa637e2f9
 branches:
   - name: stable/train
     location: 15.4.0

deliverables/ussuri/puppet-nova.yaml

@@ -30,6 +30,10 @@ releases:
       - hash: 0d7f13ff9b60952cd19fee0ce40bf5ea007f2137
         repo: openstack/puppet-nova
     version: 16.4.0
+  - projects:
+      - hash: c00e23c97ee1c676dcfd56b43f6cd0474c8e0ce5
+        repo: openstack/puppet-nova
+    version: 16.5.0
 branches:
   - name: stable/ussuri
     location: 16.3.0