fix k8s crd to read contentType middleware into dynamic config
fix k8s crd to read contentType middleware into dynamic config

Co-authored-by: John Pekcan <f92dee73d5f3e3bcb6715112879f851414da00db@ea.com>
FriggaHel/traefik,FriggaHel/traefik,dtomcej/traefik,vdemeester/traefik,dtomcej/traefik,containous/traefik,FriggaHel/traefik,FriggaHel/traefik,SantoDE/traefik,containous/traefik,vdemeester/traefik,containous/traefik,ldez/traefik,ldez/traefik,containous/traefik,SantoDE/traefik,SantoDE/traefik,mmatur/traefik,SantoDE/traefik,dtomcej/traefik,ldez/traefik,vdemeester/traefik,dtomcej/traefik,vdemeester/traefik,ldez/traefik,mmatur/traefik,mmatur/traefik,mmatur/traefik