Bump phpstan/phpstan-phpunit from 2.0.8 to 2.0.9 (#955)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

composer.json

@@ -5,7 +5,7 @@
         "php-parallel-lint/php-parallel-lint": "1.4",
         "phpstan/phpstan": "2.1.32",
         "phpstan/phpstan-deprecation-rules": "2.0.3",
-        "phpstan/phpstan-phpunit": "2.0.8",
+        "phpstan/phpstan-phpunit": "2.0.9",
         "phpstan/phpstan-strict-rules": "2.0.7",
         "phpstan/phpstan-symfony": "2.0.9",
         "spaze/phpstan-disallowed-calls": "4.7.0",