add test to check registered runners labels

Author: skarzi

molecule/default/verify.yml

@@ -30,6 +30,7 @@
     - name: Check Runner
       assert:
         that:
+          - registered_runners.json.runners|json_query('labels[*].name')|flatten|sort == ['Linux', 'self-hosted', 'x86']
           - runner_name in registered_runners.json.runners|map(attribute='name')|list
           - registered_runners.json.runners|map(attribute='status') == ["online"]
-        quiet: true
+        quiet: true