Prepare Wallaby M3

Update the version metadata for Wallaby milestone M3

Change-Id: Ifc519600480775a7315ea2a53a8135f269eb3895

metadata.json

@@ -11,15 +11,15 @@
         },
         {
             "name": "openstack/keystone",
-            "version_requirement": ">=18.2.0 <19.0.0"
+            "version_requirement": ">=18.3.0 <19.0.0"
         },
         {
             "name": "openstack/openstacklib",
-            "version_requirement": ">=18.2.0 <19.0.0"
+            "version_requirement": ">=18.3.0 <19.0.0"
         },
         {
             "name": "openstack/oslo",
-            "version_requirement": ">=18.2.0 <19.0.0"
+            "version_requirement": ">=18.3.0 <19.0.0"
         }
     ],
     "description": "Installs and configures OpenStack Barbican.",
@@ -67,5 +67,5 @@
     ],
     "source": "https://opendev.org/openstack/puppet-barbican.git",
     "summary": "Puppet module for OpenStack Barbican",
-    "version": "18.2.0"
+    "version": "18.3.0"
 }