Bump psalm/plugin-mockery from 0.9.0 to 0.9.1

Bumps [psalm/plugin-mockery](https://github.com/psalm/psalm-plugin-mockery) from 0.9.0 to 0.9.1.
- [Release notes](https://github.com/psalm/psalm-plugin-mockery/releases)
- [Commits](psalm/psalm-plugin-mockery@0.9.0...0.9.1)

---
updated-dependencies:
- dependency-name: psalm/plugin-mockery
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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