Bump phpunit/phpunit to fix CVE-2026-24765 (#86)

Author: janedbal

composer.json

@@ -24,7 +24,7 @@
         "phpstan/phpstan": "^2.1",
         "phpstan/phpstan-phpunit": "^2.0",
         "phpstan/phpstan-strict-rules": "^2.0",
-        "phpunit/phpunit": "^10.5 || ^11.0",
+        "phpunit/phpunit": "^10.5.62 || ^11.5.50",
         "shipmonk/coding-standard": "^0.2.0",
         "shipmonk/composer-dependency-analyser": "^1.0.0"
     },