Update symfony/browser-kit requirement from ^6.3 to ^7.1

Updates the requirements on [symfony/browser-kit](https://github.com/symfony/browser-kit) to permit the latest version.
- [Release notes](https://github.com/symfony/browser-kit/releases)
- [Changelog](https://github.com/symfony/browser-kit/blob/7.1/CHANGELOG.md)
- [Commits](symfony/browser-kit@v6.3.0...v7.1.1)

---
updated-dependencies:
- dependency-name: symfony/browser-kit
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

composer.json

@@ -37,7 +37,7 @@
         "codeception/module-yii2": "^1.1",
         "codeception/verify": "^3.0",
         "maglnet/composer-require-checker": "^4.6",
-        "symfony/browser-kit": "^6.3",
+        "symfony/browser-kit": "^7.1",
         "symfony/process": "^6.3",
         "yii2-extensions/debug": "dev-main",
         "yii2-extensions/gii": "dev-main",