python37Packages.cupy: 5.2.0 -> 5.4.0 (#59651)

* python37Packages.cupy: 5.2.0 -> 5.3.0

Semi-automatic update generated by
https://github.com/ryantm/nixpkgs-update tools. This update was made
based on information from
https://repology.org/metapackage/python3.7-cupy/versions

* pythonPackages.cupy: use default gcc instead of gcc5

* pythonPackages.cupy: build with CUDA10.0

* pythonPackages.cupy: 5.3.0 -> 5.4.0