gcs tests pass, updated get_file and delete_file to retrieve blob instead of instantiating blob

backend/open_webui/storage/provider.py

@@ -168,7 +168,7 @@ class GCSStorageProvider(StorageProvider):
         try:
             filename = file_path.removeprefix("gs://").split("/")[1]
             local_file_path = f"{UPLOAD_DIR}/{filename}"            
-            blob = self.bucket.blob(filename)
+            blob = self.bucket.get_blob(filename)
             blob.download_to_filename(local_file_path)
 
             return local_file_path
@@ -179,7 +179,7 @@ class GCSStorageProvider(StorageProvider):
         """Handles deletion of the file from GCS storage."""
         try:
             filename = file_path.removeprefix("gs://").split("/")[1]
-            blob = self.bucket.blob(filename)
+            blob = self.bucket.get_blob(filename)
             blob.delete()
         except NotFound as e:
             raise RuntimeError(f"Error deleting file from GCS: {e}")