the element style of array should be the same

[L4-1024]

https://github.com/Vchitect/VBench/blob/57c7ef50e86e7c12007caafb53f862a63fddaf1f/vbench/init.py#L19

["subject_consistency", "background_consistency", "aesthetic_quality", "imaging_quality", "object_class", "multiple_objects", "color", "spatial_relationship", "scene", "temporal_style", 'overall_consistency', "human_action", "temporal_flickering", "motion_smoothness", "dynamic_degree", "appearance_style"]

'overall_consistency' ==> "overall_consistency"