restore just 311

Author: alecjacobson

.github/workflows/wheels.yml

@@ -15,10 +15,8 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, ubuntu-24.04-arm, windows-latest, macos-13, macos-14]
-        #cpversion:
-        #  - cp311
-        # build all cpversion: 3.9 to 3.13
-        cpversion: [cp39, cp310, cp311, cp312, cp313]
+        cpversion:
+          - cp311
 
     steps:
       - uses: actions/checkout@v4