games/dobutsu: update to 5

A patch release.

Changelog: https://github.com/clausecker/dobutsu/blob/master/CHANGES

MFH: 2023Q1
Approved by: flo (mentor)
Differential Revision: https://reviews.freebsd.org/D38724

(cherry picked from commit 117bc952961f234403bc5f64e51c9b69aef899f0)