Fix kuttl test label assertions

Update the assert file for the openstack-lightspeed instance to use
the correct 'openstack-lightspeed-' prefix in 'managed-by' and 'name'
labels for the SAR role and role binding.

The labels were using the old 'lightspeed-' prefix which no longer
matches the operator's actual output.

Author: lpiwowar

test/kuttl/common/openstack-lightspeed-instance/assert-openstack-lightspeed-instance.yaml

@@ -52,8 +52,8 @@ metadata:
   name: lightspeed-app-server-sar-role
   labels:
     app.kubernetes.io/component: app-server
-    app.kubernetes.io/managed-by: lightspeed-operator
-    app.kubernetes.io/name: lightspeed-app-server
+    app.kubernetes.io/managed-by: openstack-lightspeed-operator
+    app.kubernetes.io/name: openstack-lightspeed-app-server
     app.kubernetes.io/part-of: openstack-lightspeed
 rules:
   - apiGroups:
@@ -75,8 +75,8 @@ metadata:
   name: lightspeed-app-server-sar-role-binding
   labels:
     app.kubernetes.io/component: app-server
-    app.kubernetes.io/managed-by: lightspeed-operator
-    app.kubernetes.io/name: lightspeed-app-server
+    app.kubernetes.io/managed-by: openstack-lightspeed-operator
+    app.kubernetes.io/name: openstack-lightspeed-app-server
     app.kubernetes.io/part-of: openstack-lightspeed
 roleRef:
   apiGroup: rbac.authorization.k8s.io