Include build for python 3.10 (finally)

.github/workflows/python-package.yml

@@ -70,7 +70,7 @@ jobs:
         uses: joerick/cibuildwheel@v1.11.0
         env:
           MACOSX_DEPLOYMENT_TARGET: "10.15"
-          CIBW_BUILD: "cp{37,38,39}-*"
+          CIBW_BUILD: "cp{37,38,39,310}-*"
           CIBW_SKIP: "*-win32 *-manylinux_i686"
           CIBW_MANYLINUX_X86_64_IMAGE: "manylinux2014"
           CIBW_TEST_EXTRAS: "tests"

setup.py

@@ -145,6 +145,7 @@ setup(
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
         "Topic :: Multimedia :: Graphics :: Graphics Conversion",
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: C++'