[CI] Test Runner: Delete filters on x-pack cleanup

Author: picandocodigo

api-spec-testing/test_file.rb

@@ -208,6 +208,7 @@ def wipe_cluster(client)
           clear_cluster_settings(client)
           return unless xpack?
 
+          clear_ml_filters(client)
           clear_ilm_policies(client)
           clear_auto_follow_patterns(client)
           clear_tasks(client)
@@ -383,6 +384,13 @@ def clear_datastreams(client)
           client.indices.delete_data_stream(name: '*', expand_wildcards: 'all')
         end
 
+        def clear_ml_filters(client)
+          filters = client.xpack.ml.get_filters['filters']
+          filters.each do |filter|
+            client.xpack.ml.delete_filter(filter_id: filter['filter_id'])
+          end
+        end
+
         def clear_indices(client)
           client.indices.delete(index: '*', expand_wildcards: 'all', ignore: 404)