Fixed failing test

tests/test_cli.py

@@ -521,7 +521,7 @@ def test_playlists_rm(cli_ctx, session, responses, get_requests):
 
 def test_playlists_tracks_add(cli_ctx, session, responses, get_requests):
     command = cli.playlists.playlists_tracks_add
-    url = "https://test.funkwhale/api/v1/playlists/66/"
+    url = "https://test.funkwhale/api/v1/playlists/66/add"
     responses.post(url)
 
     command.callback(id=66, track=[1, 42], no_duplicates=True, _async_reraise=True)