Compatibility with CMake < 3.10 will be removed from a future version of CMake

https://github.com/LaboratoryOfPlasmaPhysics/cppdict/blob/0861df41760979cfd548249ebc2d5510bbd90858/CMakeLists.txt#L2

https://cmake.org/cmake/help/latest/release/3.31.html#deprecated-and-removed-features