Test on pypy-3.11 instead of pypy-3.8

Author: cclauss

.github/workflows/test.yml

@@ -34,7 +34,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ windows-latest, ubuntu-latest ]
-        python: [ "3.8","3.10","3.11","3.12", "pypy-3.8" ]
+        python: [ "3.8", "3.10", "3.11", "3.12", "pypy-3.11" ]
 
     steps:
     - uses: actions/checkout@v5