change py version on wheel runs (#266)

Author: HGWright

.github/workflows/ci-wheels.yml

@@ -50,7 +50,7 @@ jobs:
     - name: "build ${{ matrix.os }} (${{ matrix.arch }}) wheels"
       uses: pypa/cibuildwheel@v2.19.2
       env:
-        CIBW_SKIP: "cp36-* cp37-* cp312-* pp* *-musllinux*"
+        CIBW_SKIP: "cp39-* cp313-* pp* *-musllinux*"
         CIBW_ARCHS: ${{ matrix.arch }}
         CIBW_BUILD_FRONTEND: "build"
         CIBW_MANYLINUX_X86_64_IMAGE: "manylinux2014"