Update setup.py

Author: searchivarius

python_bindings/setup.py

@@ -13,7 +13,7 @@
 libraries = []
 extra_objects = []
 
-requirements_list = ['pybind11>=2.0', 'numpy']
+requirements_list = ['pybind11>=2.4', 'numpy']
 
 if os.path.exists(library_file):
     # if we have a prebuilt library file, use that.