[youtube] Fix age gate content detection (#26100) (closes #26152, closes #26311, closes #26384)
[youtube] Fix age gate content detection (#26100) (closes #26152, closes #26311, closes #26384)


ozburo/youtube-dl,yan12125/youtube-dl,Tatsh/youtube-dl,nyuszika7h/youtube-dl,spvkgn/youtube-dl,Tatsh/youtube-dl,spvkgn/youtube-dl,yan12125/youtube-dl,nyuszika7h/youtube-dl,rg3/youtube-dl,ozburo/youtube-dl,rg3/youtube-dl