make meta as :dead instead of :unlicensed

lib/logstash/outputs/elasticsearch/http_client/pool.rb

@@ -285,7 +285,7 @@ def healthcheck!
             end
 
             alive = @license_checker.appropriate_license?(self, url)
-            meta[:state] = alive ? :alive : :unlicensed
+            meta[:state] = alive ? :alive : :dead
           end
         rescue HostUnreachableError, BadResponseCodeError => e
           logger.warn("Attempted to resurrect connection to dead ES instance, but got an error.", url: url.sanitized.to_s, error_type: e.class, error: e.message)