Update vimeo/psalm requirement from ^3.1 to ^3.4
Update vimeo/psalm requirement from ^3.1 to ^3.4

Updates the requirements on [vimeo/psalm](https://github.com/vimeo/psalm) to permit the latest version.
- [Release notes](https://github.com/vimeo/psalm/releases)
- [Changelog](https://github.com/vimeo/psalm/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vimeo/psalm/compare/3.1.0...3.4.9)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
Ocramius/LazyProperty