build(deps-dev): update phpunit/phpunit requirement from ^9.4 to ^9.5

Updates the requirements on [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) to permit the latest version.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/master/ChangeLog-9.5.md)
- [Commits](sebastianbergmann/phpunit@9.4.0...9.5.1)

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

Author: dependabot-preview[bot]

composer.json

@@ -24,7 +24,7 @@
         "phpstan/extension-installer": "^1.0",
         "phpstan/phpstan": "^0.12.50",
         "phpstan/phpstan-phpunit": "^0.12.16",
-        "phpunit/phpunit": "^9.4",
+        "phpunit/phpunit": "^9.5",
         "spatie/phpunit-snapshot-assertions": "^4.2",
         "symfony/var-dumper": "^5.1",
         "thecodingmachine/phpstan-safe-rule": "^1.0"