fix(wlasl): rectify attribute

wlasl.py

@@ -51,7 +51,7 @@ class WLASL(datasets.GeneratorBasedBuilder):
     def _info(self) -> datasets.DatasetInfo:
         features = datasets.Features({
             "gloss": datasets.Value("string"),
-            "bbbox": datasets.Sequence(datasets.Value("int16")),
+            "bbox": datasets.Sequence(datasets.Value("int16")),
             "fps": datasets.Value("int8"),
             "frame_end": datasets.Value("int32"),
             "frame_start": datasets.Value("int32"),