message: add 3.10 to import-test
diff: @@ -18,7 +18,7 @@ jobs:
  strategy:
  matrix:
  os: [ubuntu-latest, macos-10.15, windows-latest]
  - python-version: ["3.7", "3.8", "3.9"]
  + python-version: ["3.7", "3.8", "3.9", "3.10"]
  steps:
  - uses: actions/checkout@v2
  