Bump vimeo/psalm from 4.2.0 to 4.2.1

Bumps [vimeo/psalm](https://github.com/vimeo/psalm) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/vimeo/psalm/releases)
- [Commits](https://github.com/vimeo/psalm/compare/4.2.0...4.2.1

)

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