actions: -py3.5 +py3.9 +py3.10

Author: olegm

.github/workflows/tests.yml

@@ -13,7 +13,7 @@ jobs:
  runs-on: ubuntu-20.04
  strategy:
  matrix:
- python-version: [3.5, 3.6, 3.7, 3.8, 'pypy3']
+ python-version: [3.6, 3.7, 3.8, 3.9, '3.10', 'pypy3']
  steps:
  - name: checkout
  uses: actions/checkout@v2