switch to release versions of cffi

Author: graingert

setup.py

@@ -94,11 +94,11 @@ def finalize_options(self):
 
     setup_requires=[
         "cffi>=1.0.0; python_version<'3.13'",
-        "cffi>=1.17.0rc1; python_version>='3.13'",
+        "cffi>=1.17.0; python_version>='3.13'",
     ],
     install_requires=[
         "cffi>=1.0.0; python_version<'3.13'",
-        "cffi>=1.17.0rc1; python_version>='3.13'",
+        "cffi>=1.17.0; python_version>='3.13'",
     ],
     python_requires=">=3.7",
     cffi_modules=["src/brotlicffi/_build.py:ffi"],