update loxigen-artifacts
update loxigen-artifacts

* submodules/loxigen-artifacts 1f6eb66...7f8b063 (1):
  > Artifacts from https://github.com/floodlight/loxigen/compare/0de98dda167b49a167a61dbef1c5b8d226288dc6...1604e66447ae463ecb4ad7c2e8f5f1accc8983b9

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