CI: Python 3.11 has been released

Author: amotl

.github/workflows/test.yml

@@ -19,7 +19,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         python-version: [
-          '3.6', '3.7', '3.8', '3.9', '3.10', '3.11-dev',
+          '3.6', '3.7', '3.8', '3.9', '3.10', '3.11',
           'pypy-3.6', 'pypy-3.7', 'pypy-3.8', 'pypy-3.9',
         ]
     steps: