www/deno: update to 1.34.3
Important update due to dprint-swc-ext dependency bump fixing a panic.
While here, avoid bringing in the rayon dependency via sysinfo.
Changelog: https://github.com/denoland/deno/compare/v1.34.1...v1.34.3
PR: 272102
Sponsored by: https://www.patreon.com/valpackett