devel/qt5-assistant: Remake patch

This fixes patch stage on 15-CURRENT between [1] and [2].

[1] https://cgit.freebsd.org/src/commit/?id=f97b6a8f84b3ed209c2aea0958a7b889d0bf27ed
[2] https://cgit.freebsd.org/src/commit/?id=fb37e38fbe99039a479520b4b596f4bfc04e2a88

PR: 289200
Reported by: Ralph Zitz <ralph@zitz.dk>, pkg-fallout

(cherry picked from commit 1ff178158f0631e82b8e4387c48ef420a0eb7898)