Update movielens-recent-ratings.py

movielens-recent-ratings.py

@@ -33,6 +33,7 @@ class MovieLens(datasets.GeneratorBasedBuilder):
                     "user_id": datasets.Value("int32"),
                     "rating": datasets.Value("float32"),
                     "title": datasets.Value("string"),
+                    "poster": datasets.Value("string"),
                 }
             ),
             supervised_keys=None,