yet another fix for delete on close.

delete_on_close=False and delete=True should now delete file upon session end.

partitura/io/__init__.py

@@ -51,7 +51,7 @@ def download_file(url):
     extension = os.path.splitext(url)[-1]
 
     # Create a temporary file
-    temp_file = tempfile.NamedTemporaryFile(suffix=extension, delete_on_close=True)
+    temp_file = tempfile.NamedTemporaryFile(suffix=extension, delete_on_close=False, delete=True)
 
     # Write the content to the temporary file
     with open(temp_file.name, 'wb') as f: