CI: Bump Python versions.

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: [3.7, 3.9]
+        python: ['3.9', '3.10', '3.11']
 
     steps:
       - uses: actions/checkout@v2
@@ -33,5 +33,5 @@ jobs:
         run: |
           python -m pip install coveralls
           coveralls --service=github
-        if: ${{ matrix.python == '3.9' }}
+        if: ${{ matrix.python == '3.11' }}
 

library/tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{37,38,39},qa
+envlist = py,qa
 skip_missing_interpreters = True
 
 [testenv]