[API] Adds return_200_for_cluster_health_timeout param to cluster.health

Author: picandocodigo

elasticsearch-api/lib/elasticsearch/api/actions/cluster/health.rb

@@ -33,9 +33,10 @@ module Actions
         # @option arguments [Boolean] :wait_for_no_relocating_shards Whether to wait until there are no relocating shards in the cluster
         # @option arguments [Boolean] :wait_for_no_initializing_shards Whether to wait until there are no initializing shards in the cluster
         # @option arguments [String] :wait_for_status Wait until cluster is in a specific state (options: green, yellow, red)
+        # @option arguments [Boolean] :return_200_for_cluster_health_timeout Whether to return HTTP 200 instead of 408 in case of a cluster health timeout from the server side
         # @option arguments [Hash] :headers Custom HTTP headers
         #
-        # @see https://www.elastic.co/guide/en/elasticsearch/reference/7.x/cluster-health.html
+        # @see https://www.elastic.co/guide/en/elasticsearch/reference/7.16/cluster-health.html
         #
         def health(arguments = {})
           headers = arguments.delete(:headers) || {}
@@ -70,7 +71,8 @@ def health(arguments = {})
           :wait_for_events,
           :wait_for_no_relocating_shards,
           :wait_for_no_initializing_shards,
-          :wait_for_status
+          :wait_for_status,
+          :return_200_for_cluster_health_timeout
         ].freeze)
       end
     end