Fix composer audit warnings 2026-02-01 (joomla#46822)

Fix composer audit warnings joomla#46822

Author: richard67

composer.json

@@ -105,7 +105,7 @@
     "php-debugbar/php-debugbar": "^2.2.4"
   },
   "require-dev": {
-    "phpunit/phpunit": "^9.6.29",
+    "phpunit/phpunit": "^9.6.34",
     "friendsofphp/php-cs-fixer": "^3.88.0",
     "squizlabs/php_codesniffer": "^3.13.4",
     "joomla/mediawiki": "^4.0",