add metadata for cibuildwheel

Author: blink1073

.github/workflows/dist-python.yml

@@ -93,6 +93,7 @@ jobs:
         if: ${{ matrix.buildplat[0] != 'macos-11' }}
         env:
           CIBW_BUILD: ${{ matrix.python }}-${{ matrix.buildplat[1] }}
+          CIBW_ENABLE: cpython-freethreading
           MACOSX_DEPLOYMENT_TARGET: "12.0"
         run: python -m cibuildwheel --output-dir wheelhouse