devel/gumbo: Update 0.13.0 => 0.13.2

Changelog:
https://codeberg.org/gumbo-parser/gumbo-parser/src/tag/0.13.2/CHANGES.md

Improve port:

• Switch from fork to upstream.
• Replace PORTVERSION with DISTVERSION.
• Sort USES.
• MV in post-extract with custom WRKSRC.
• Remove unnecessary STRIP_CMD - INSTALL_TARGET=install-strip is enough.

PR: 294862
Approved by: bdrewery (maintainer, timeout 2 weeks)
Sponsored by: UNIS Labs
Co-authored-by: Vladimir Druzenko <vvd@FreeBSD.org>