Test on new Pythons

Author: Zac-HD

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, "pypy-3.7"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "pypy-3.7", "pypy-3.8"]
       fail-fast: false
     steps:
     - uses: actions/checkout@v2