Test on pypy3.11

Author: baseplate-admin

.github/workflows/CI.yml

@@ -23,7 +23,7 @@ jobs:
                         '3.14-dev',
                         'pypy-3.9',
                         'pypy-3.10',
-                        # 'pypy-3.11-dev',
+                        'pypy-3.11',
                     ]
                 postgres-version: ['13', '14', '15', '16', '17']
         continue-on-error: true