Upgrade of PHPUnit from ^10 to ^11

Author: heinrichschiller

composer.json

@@ -20,7 +20,7 @@
         "friendsofphp/php-cs-fixer": "^3",
         "middlewares/utils": "^4",
         "phpstan/phpstan": "^2",
-        "phpunit/phpunit": "^10",
+        "phpunit/phpunit": "^11",
         "slim/psr7": "^1",
         "squizlabs/php_codesniffer": "^4"
     },

phpunit.xml

@@ -3,7 +3,7 @@
          bootstrap="vendor/autoload.php"
          colors="true"
          backupGlobals="false"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.3/phpunit.xsd"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.5/phpunit.xsd"
          cacheDirectory=".phpunit.cache"
          backupStaticProperties="false">
     <coverage/>