Update doroutes to ~=0.6.0

Author: joamatab

pyproject.toml

@@ -16,7 +16,7 @@ dependencies = [
   "gdsfactory>=9.39,<9.41",
   "gplugins[sax,tidy3d]~=2.0.0",
   "jsondiff",
-  "doroutes>=0.3.0",
+  "doroutes~=0.6.0",
   "gdsfactoryplus",
   "pytz"
 ]