Update psalm/plugin-phpunit requirement from ^0.18.4 to ^0.19.0

Updates the requirements on [psalm/plugin-phpunit](https://github.com/psalm/psalm-plugin-phpunit) to permit the latest version.
- [Release notes](https://github.com/psalm/psalm-plugin-phpunit/releases)
- [Commits](psalm/psalm-plugin-phpunit@0.18.4...0.19.0)

---
updated-dependencies:
- dependency-name: psalm/plugin-phpunit
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -32,7 +32,7 @@
         "phpmetrics/phpmetrics": "^2.8",
         "phpstan/phpstan": "^1.9",
         "phpunit/phpunit": "^9.5.28",
-        "psalm/plugin-phpunit": "^0.18.4",
+        "psalm/plugin-phpunit": "^0.19.0",
         "ray/object-visual-grapher": "^1.0",
         "ray/rector-ray": "^1.0",
         "rector/rector": "^0.14.8",