dns/libidn: Update 1.43 => 1.44
News:
https://cgit.git.savannah.gnu.org/cgit/libidn.git/tree/NEWS?h=v1.44
- Fix warnings from portclippy.
- Merge INSTALL_DATAs in post-install-DOCS-on.
PR: 297610
Sponsored by: UNIS Labs
Co-authored-by: Vladimir Druzenko <vvd@FreeBSD.org>
MFH: 2026Q3
(cherry picked from commit b31023f59cea824ae3ffea0d2240e3c627abf635)