npm: bump pack.gl from 0.1.3 to 0.1.9

Bumps [pack.gl](https://github.com/stylescape/pack.gl) from 0.1.3 to 0.1.9.
- [Release notes](https://github.com/stylescape/pack.gl/releases)
- [Commits](stylescape/pack.gl@v0.1.3...v0.1.9)

---
updated-dependencies:
- dependency-name: pack.gl
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>