graphics/qimgv: update 1.03.g20240620 → 1.03.g20240727

* Upstream committed our local patch with FreeBSD support.
* Require compiler with C++ 17.
* Drop EXIV2_DESC - bsd.options.desc.mk have it.

PR:		280422
Reported by:	diizzy
Approved by:	Kenneth Raplee <kenrap@kennethraplee.com> (maintainer, via IRC)