update wc song test hash [close #203]
update wc song test hash [close #203]

simon-weber/gmusicapi,tanhaiwang/gmusicapi,TheOpenDevProject/gmusicapi,dvirtz/gmusicapi,thebigmunch/gmusicapi,simon-weber/Unofficial-Google-Music-API,dvirtz/gmusicapi,peetahzee/Unofficial-Google-Music-API