update loxigen-artifacts
update loxigen-artifacts

* submodules/loxigen-artifacts f9dd101...a66e3e9 (1):
  > Artifacts from https://github.com/floodlight/loxigen/compare/2034d29c5b32c15b4f75499c85eb38df6b48a966...551246f22a683e68c68be184af68bbb6611a226c

vezril/ivs,vezril/ivs,vezril/ivs,floodlight/ivs,floodlight/ivs,floodlight/ivs