Add missing comma in CMake arguments for Python bindings

setup.py

@@ -185,7 +185,7 @@ def cmake_arguments(self, cfg: str, extdir: str) -> list[str]:
             '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=' + extdir,
             '-DPython3_EXECUTABLE=' + sys.executable,
             '-DFES_BUILD_PYTHON_BINDINGS=ON',
-            *self.set_cmake_user_options()
+            *self.set_cmake_user_options(),
         ]
         return cmake_args