[API] Test Runner: Refactor for more vague version in skip_definition

Author: picandocodigo

elasticsearch-api/api-spec-testing/test_file.rb

@@ -74,7 +74,7 @@ def skip_entire_test_file?(file_name)
       end
 
       def skip_version?(client, skip_definition)
-        return true if skip_definition['version'] == 'all'
+        return true if skip_definition.fetch('version', '').include? 'all'
 
         range_partition = /\s*-\s*/
         return unless (versions = skip_definition['version'])