Pass in the 'cache_dir' to use local cache (#690)

* Pass in the 'cache_dir' to use local cache

We can pass in the 'cache_dir' to the huggingface snapshot_download function if we have 'videos' in dataset_kwargs to avoid force-redownloading.

* Fix: apply Black formatting

Apply Black formatting

Author: JulyanZhu

lmms_eval/api/task.py

@@ -942,10 +942,17 @@ def _download_from_youtube(path):
                     force_unzip = dataset_kwargs.get("force_unzip", False)
                     revision = dataset_kwargs.get("revision", "main")
                     create_link = dataset_kwargs.get("create_link", False)
-                    cache_path = snapshot_download(repo_id=self.DATASET_PATH, revision=revision, repo_type="dataset", force_download=force_download, etag_timeout=60)
+                    cache_path = snapshot_download(
+                        repo_id=self.DATASET_PATH,
+                        cache_dir=cache_dir,
+                        revision=revision,
+                        repo_type="dataset",
+                        force_download=force_download,
+                        etag_timeout=60,
+                    )
                     zip_files = glob(os.path.join(cache_path, "**/*.zip"), recursive=True)
                     tar_files = glob(os.path.join(cache_path, "**/*.tar*"), recursive=True)
-
+                    
                     def unzip_video_data(zip_file):
                         import os
                         import zipfile