build(deps-dev): bump psy/psysh from 0.12.4 to 0.12.19

Bumps [psy/psysh](https://github.com/bobthecow/psysh) from 0.12.4 to 0.12.19.
- [Release notes](https://github.com/bobthecow/psysh/releases)
- [Commits](bobthecow/psysh@v0.12.4...v0.12.19)

---
updated-dependencies:
- dependency-name: psy/psysh
  dependency-version: 0.12.19
  dependency-type: indirect
...

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

Author: dependabot[bot]