chore(deps): fix npm audit vulnerabilities and loosen three peer range (#19)

- npm audit fix: protobufjs 8.5.0->8.6.5, esbuild 0.28.0->0.28.1 (0 vulns)
- widen `three` peerDependency to `>=0.173.0` so consumers on newer
  three (0.174+) no longer hit peer conflicts (caret locks 0.x minors)
- bump version to 1.6.2

Co-authored-by: joaner <joaner@users.noreply.github.com>

Author: joaner