Downgrade PHPUnit

Author: arokettu

composer.json

@@ -47,7 +47,7 @@
         "guzzlehttp/guzzle": "^7.9",
         "php-http/discovery": "^1.20",
         "php-http/mock-client": "^1.6",
-        "phpunit/phpunit": "^12.2",
+        "phpunit/phpunit": "^11.5",
         "psy/psysh": "*",
         "sandfox.dev/code-standard": "^1.2025.05.07",
         "squizlabs/php_codesniffer": "*",

phpunit.dist.xml

@@ -5,7 +5,7 @@
          displayDetailsOnTestsThatTriggerWarnings="true"
          displayDetailsOnTestsThatTriggerDeprecations="true"
          executionOrder="random"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/12.2/phpunit.xsd">
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.5/phpunit.xsd">
     <testsuites>
         <testsuite name="all">
             <directory>tests</directory>