third_party: Bump netlistsvg version.
third_party: Bump netlistsvg version.

Signed-off-by: David Shah <4be9b043912c80de45ffb490ebd07e45bc0fcd34@gmail.com>
Signed-off-by: Tim 'mithro' Ansell <b1c1d8736f20db3fb6c1c66bb1455ed43909f0d8@mith.ro>

SymbiFlow/symbiflow-arch-defs,SymbiFlow/symbiflow-arch-defs