build(deps-dev): update symfony/http-client requirement

Updates the requirements on [symfony/http-client](https://github.com/symfony/http-client) to permit the latest version.
- [Release notes](https://github.com/symfony/http-client/releases)
- [Changelog](https://github.com/symfony/http-client/blob/7.0/CHANGELOG.md)
- [Commits](symfony/http-client@v6.3.0...v7.0.0)

---
updated-dependencies:
- dependency-name: symfony/http-client
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -28,7 +28,7 @@
     "require-dev": {
       "phpunit/phpunit": "^10",
       "nyholm/psr7": "^1.8",
-      "symfony/http-client": "^6.3",
+      "symfony/http-client": "^7.0",
       "symplify/easy-coding-standard": "^12.0.8",
         "vimeo/psalm": "^5.15",
         "psalm/plugin-phpunit": "^0.18.4"