net/tayga: Update 0.9.5 => 0.9.6, take maintainership

[alven]

Summary

Changelogs:

• https://github.com/apalrd/tayga/releases/tag/0.9.6
• https://github.com/apalrd/tayga/compare/0.9.5...0.9.6

• Clarify LICENSE
• Remove upstreamed PATCHFILES
• Remove RELEASE variable from MAKE_ENV: already assigned in ${WRKSRC}/release

+ Add TEST_TARGET for testing
+ Add DOCS option

• Pet portclippy(1) and portfmt(1)

Test Plan

For every {amd64} × {15.0, 14.3}:

• Successful poudriere testport
• Successful run-testing

[yuri]

Approved.

Thanks,
Yuri