Fix a bug where only HTTP 200 response codes were accepted as success (…

…#95)

* Accept more response statuses

Http 2xx range are all success statuses, so should be accepted without raising `MultiPartDownloadError`.

* Update parfive/downloader.py

Co-authored-by: Stuart Mumford <stuart@cadair.com>

Co-authored-by: Stuart Mumford <stuart@cadair.com>

parfive/downloader.py

@@ -687,7 +687,7 @@ async def _http_download_worker(self, session, url, chunksize, http_range, queue
                 resp.headers,
             )
 
-            if resp.status != 200:
+            if resp.status < 200 or resp.status > 300:
                 raise MultiPartDownloadError(resp)
 
             while True: