Include Python 3.10 in default test matrix

Author: Cito

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        python: [3.6, 3.7, 3.8, 3.9, pypy3]
+        python: [3.6, 3.7, 3.8, 3.9, 3.10, pypy3]
 
     steps:
       - uses: actions/checkout@v2

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py3{6,7,8,9}, black, flake8, mypy, docs, manifest
+envlist = py3{6,7,8,9,10}, black, flake8, mypy, docs, manifest
 isolated_build = true
 
 [testenv:black]