cad/abc: Update g20241117 => g20251002, take maintainership

[alven]

Summary

Original maintainer is inactive for several years.

• Pet portclippy(1) and portfmt(1)

Test Plan

For every {amd64, i386} × {14.3, 13.5}:

• Successful poudriere testport
• Successful run-testing

[alven]

s/INSTALL_PROGRAM/INSTALL_LIB/

[alven]

@yuri: Would you like to be the maintainer instead of me?

[yuri]

Approved.

Thanks,
Yuri