Update Dhewm3 to current version (v1.5.4)

["Kenshiro []" <tensiam@hotmail.com>]

Dear Maintainer,

If it's possible please update dhewm3 to the latest version so it's available in the stable release of this year.

https://tracker.debian.org/pkg/dhewm3

https://dhewm3.org/

Best regards,

Kenshiro