ci: remove py39 for cibuildwheel (#123)

* update the cibuildwheel configuration

* remove building for py3.9

Author: yanghan234

.github/workflows/python-publish.yaml

@@ -49,7 +49,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-14]
-        python-version: ['39', '310', '311', '312', '313']
+        python-version: ['310', '311', '312', '313']
     runs-on: ${{ matrix.os }}
 
     steps: