chore(deps): bump piscina from 3.2.0 to 4.9.3

Bumps [piscina](https://github.com/piscinajs/piscina) from 3.2.0 to 4.9.3.
- [Release notes](https://github.com/piscinajs/piscina/releases)
- [Changelog](https://github.com/piscinajs/piscina/blob/v4.9.3/CHANGELOG.md)
- [Commits](piscinajs/piscina@v3.2.0...v4.9.3)

---
updated-dependencies:
- dependency-name: piscina
  dependency-version: 4.9.3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]