archivers/lhasa: Update to 0.5.0
Take maintainership.
Update MASTER_SITES, COMMENT, LICENSE_FILE and pkg-descr.
Use the LIBVERSION and VERSION variable in pkg-plist.
Changelog:
https://raw.githubusercontent.com/fragglet/lhasa/refs/tags/v0.5.0/NEWS.md
PR: 290946
Approved by: cs@innolan.dk (maintainer timeout), fluffy (mentor)