Added python 3.8 & 3.9

Author: jnolan14

pyproject.toml

@@ -2,7 +2,7 @@
 requires = ['setuptools', 'wheel', 'Cython>=3.0', 'numpy']
 
 [tool.cibuildwheel]
-build = ["cp3{10,11}-*"]
+build = ["cp3{8,9,10,11}-*"]
 archs = "native"
 before-build = "pip install abi3audit"
 test-command = "python -c \"import surfa; print(surfa.__version__)\""