Increase dataset limit (#47)

src/yandex_cloud_ml_sdk/_datasets/uploaders.py

@@ -11,7 +11,7 @@
     from .dataset import BaseDataset
 
 
-MAX_FILE_SIZE = 300 * 1024 * 1024
+MAX_FILE_SIZE = 5 * 1024 ** 3  # 5 GB
 
 
 class SingleUploader:
@@ -25,7 +25,7 @@ async def upload(self, path: PathLike, timeout: float) -> None:
         if size > MAX_FILE_SIZE:
             raise RuntimeError(
                 f'file {path} is too big; in this version of SDK it must be less '
-                'than 300MB'
+                'than 5GB'
             )
 
         # pylint: disable=protected-access