[Snyk] Security upgrade ubuntu from 16.04 to xenial-20210114#4

snyk-bot wants to merge 1 commit intomasterDidstopia/factorio-server:masterfrom

snyk-fix-b5ecce160b9493fb9e0baa5629c75f43Didstopia/factorio-server:snyk-fix-b5ecce160b9493fb9e0baa5629c75f43Copy head branch name to clipboard