Test Python 3.11 ahead of GA (#5)

* Update license field and trove classifiers

* Test Python 3.11

* Ignore pyright on untyped test

Author: tonybaloney

.github/workflows/CI.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11-dev']
 
     steps:
     - uses: actions/checkout@v2