ENH: Remove 39

Author: larsoner

.github/workflows/build-wheels.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: [cp39, cp310, cp311, cp312, cp313]
+        python: [cp310, cp311, cp312, cp313]
         os: [ubuntu-latest, windows-latest, macos-13, macos-latest]
         python_impl: [Python]
         include: