Summary:
`Response` is `Closeable`, so we must close it even if the download is no longer relevant. Found while running with StrictMode enabled and reloading quickly multiple times.
Changelog: [Internal]
Reviewed By: NickGerleman
Differential Revision: D56629079
fbshipit-source-id: 041bf295313cbf78b7f2bb6580c50fdc2a324728