cad/veryl: Update 0.16.3 => 0.16.4

Changelogs:

• https://github.com/veryl-lang/veryl/releases/tag/v0.16.4
• https://github.com/veryl-lang/veryl/compare/v0.16.3...v0.16.4

• Switch: from rust-nightly to rust as needed edition2024 is already included since rust-1.85
• Pet: portclippy(1) and portfmt(1)

Approved by: yuri@ (Mentor)

Differential Revision: https://reviews.freebsd.org/D52686