Update dataset archive extension to `.tar.zst`

Closes #9 (closed)

worker_generic_training_dataset/worker.py

@@ -355,11 +355,11 @@ class DatasetExtractor(DatasetWorker):
             casted_elements = list(map(_format_element, elements))
             self.process_split(split_name, casted_elements)
 
-        # TAR + ZSTD the cache and the images folder, and store as task artifact
-        zstd_archive_path: Path = self.work_dir / f"{dataset.id}.zstd"
-        logger.info(f"Compressing the images to {zstd_archive_path}")
+        # TAR + ZST the cache and the images folder, and store as task artifact
+        zst_archive_path: Path = self.work_dir / f"{dataset.id}.tar.zst"
+        logger.info(f"Compressing the images to {zst_archive_path}")
         create_tar_zst_archive(
-            source=self.data_folder_path, destination=zstd_archive_path
+            source=self.data_folder_path, destination=zst_archive_path
         )
         self.data_folder.cleanup()