message: Remove ubuntu 16.04 from CI test builds
diff: @@ -12,7 +12,7 @@ jobs:
  strategy:
  fail-fast: false
  matrix:
  - os: [ubuntu-latest, macos-latest, windows-latest, ubuntu-16.04, ubuntu-18.04]
  + os: [ubuntu-latest, macos-latest, windows-latest, ubuntu-18.04]
  steps:
  - uses: actions/checkout@v2
  