message: Bump linux continuous build to ubuntu 18.04 (deprecation of 16.04)
diff: -name: Ubuntu 16.04 / Qt 5.15
  +name: Ubuntu 18.04 / Qt 5.15
  on:
  workflow_run:
  workflows: ["Release setup"]
  @@ -6,7 +6,7 @@ on:
  jobs:
  buildUbuntuXenial:
  - runs-on: ubuntu-16.04
  + runs-on: ubuntu-18.04
  env:
  CC: gcc-9
  CXX: g++-9
  