devel/xmake-io: Update 2.9.9 => 3.0.9

Changelog:
https://github.com/xmake-io/xmake/blob/v3.0.9/CHANGELOG.md

Improve port:

• Switch from tarball generated by github to prepared by upstream.
• Fix warnings from portclippy.
• Unbundle tbox.
• Refresh patches.

PR: 296537 287585
Approved by: Huan Zhou <pericycle.cc@gmail.com> (maintainer, timeout 2 weeks)
Sponsored by: UNIS Labs
Co-authored-by: Lin <lin@sz.cn.eu.org>
Co-authored-by: Huan Zhou <pericycle.cc@gmail.com>
MFH: 2026Q3