archivers/grzip: Update 0.3.0 => 0.3.1

Changelog:
https://codeberg.org/BSDforge/grzip/src/tag/0.3.1/Changelog

Port changes:

• Move to Codeberg.
• Add NLS option.
• Use USES+=localbase instead of CFLAGS/LDFLAGS.
• Move plist from Makefile to pkg-plist - 11 files.
• Split long lines.
• Fix soname: libgrzip.so.0 instead of libgrzip.so.

PR: 293434
Co-authored-by: Vladimir Druzenko <vvd@FreeBSD.org>