Update symfony/css-selector requirement from ^6.2 to ^6.2 || ^7.0

Updates the requirements on [symfony/css-selector](https://github.com/symfony/css-selector) to permit the latest version.
- [Release notes](https://github.com/symfony/css-selector/releases)
- [Changelog](https://github.com/symfony/css-selector/blob/7.0/CHANGELOG.md)
- [Commits](symfony/css-selector@v6.2.0...v7.0.0)

---
updated-dependencies:
- dependency-name: symfony/css-selector
  dependency-type: direct:production
...

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

Author: dependabot[bot]

composer.json

@@ -15,7 +15,7 @@
     "guzzlehttp/guzzle": "^7.5",
     "psr/http-client": "^1.0",
     "psr/http-message": "1 - 2",
-    "symfony/css-selector": "^6.2",
+    "symfony/css-selector": "^6.2 || ^7.0",
     "symfony/dom-crawler": "^6.2 || ^7.0"
   },
   "minimum-stability": "dev",