Release Ceilometer stable branches

This patch proposes releases for the following stable branches:

Rocky 11.1.0
Stein 12.1.0
Train 13.1.0

We bump the minor version for all branches since some commits declare
new resource types for Gnocchi, which could be interpreted as new
features.

Change-Id: I6b128ff0d22ce13e1245a4c55ce608142564207d

deliverables/rocky/ceilometer.yaml

@@ -14,6 +14,10 @@ releases:
       - hash: 018ff32fe0200a041297c386eb8b381f1bec0e71
         repo: openstack/ceilometer
     version: 11.0.1
+  - version: 11.1.0
+    projects:
+      - repo: openstack/ceilometer
+        hash: af40e1bf360dbadb6e064c116c8bd5e58e650878
 branches:
   - name: stable/rocky
     location: 11.0.0

deliverables/stein/ceilometer.yaml

@@ -15,6 +15,10 @@ releases:
       - hash: 062e02c612d1fdd8c40b9209319b32e04489c163
         repo: openstack/ceilometer
     version: 12.0.0
+  - version: 12.1.0
+    projects:
+      - repo: openstack/ceilometer
+        hash: f63a65acc0b70699e366f2ffe9f449835020e107
 branches:
   - location: 12.0.0.0rc1
     name: stable/stein

deliverables/train/ceilometer.yaml

@@ -19,6 +19,10 @@ releases:
       - repo: openstack/ceilometer
         hash: 7962947310d784fdfccf03512468ee2eec0c9ffa
     diff-start: 12.0.0
+  - version: 13.1.0
+    projects:
+      - repo: openstack/ceilometer
+        hash: 4e91fa56d12866f81b820244f9125c2da4fa762a
 branches:
   - name: stable/train
     location: 13.0.0.0rc1