Cookies seem to be not properly passed to yt-dlp

[bohning]

if path := browser.cookie_path():
        options["cookies"] = (f"{browser.value}:{path}",)

doesn't seem to do the trick, age restricted content still fails even though I'm logged into YT in a browser (test with e.g. https://usdb.animux.de/?link=detail&id=9743)