composer(deps-dev): Bump psalm/plugin-phpunit from 0.18.3 to 0.18.4

Bumps [psalm/plugin-phpunit](https://github.com/psalm/psalm-plugin-phpunit) from 0.18.3 to 0.18.4.
- [Release notes](https://github.com/psalm/psalm-plugin-phpunit/releases)
- [Commits](psalm/psalm-plugin-phpunit@0.18.3...0.18.4)

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

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

composer.json

@@ -45,7 +45,7 @@
     "phpstan/phpstan-phpunit": "^1.2.2",
     "phpstan/phpstan-strict-rules": "^1.4.4",
     "phpunit/phpunit": "^9.5.26",
-    "psalm/plugin-phpunit": "~0.18.3",
+    "psalm/plugin-phpunit": "~0.18.4",
     "ramsey/uuid": "^4.2.3",
     "symfony/cache": "^5.3.14",
     "vimeo/psalm": "^5.1"