fix less to stable version
fix less to stable version

3.0 is still alpha and currently breaks when building styles

dalf/searx,asciimoo/searx,misnyo/searx,jcherqui/searx,jcherqui/searx,misnyo/searx,misnyo/searx,jcherqui/searx,asciimoo/searx,dalf/searx,dalf/searx,dalf/searx,asciimoo/searx,asciimoo/searx,jcherqui/searx,misnyo/searx