Merge pull request #2954 from abn/issue/2931

provider: ensure download dest file is a string

poetry/puzzle/provider.py

@@ -324,7 +324,7 @@ class Provider:
         with temporary_directory() as temp_dir:
             temp_dir = Path(temp_dir)
             file_name = os.path.basename(urlparse.urlparse(url).path)
-            download_file(url, temp_dir / file_name)
+            download_file(url, str(temp_dir / file_name))
 
             package = cls.get_package_from_file(temp_dir / file_name)