Update symfony/phpunit-bridge requirement from ^4.1 || ^5.0 || ^5.2 |…

…| ^6.0 to ^7.0.1

Updates the requirements on [symfony/phpunit-bridge](https://github.com/symfony/phpunit-bridge) to permit the latest version.
- [Release notes](https://github.com/symfony/phpunit-bridge/releases)
- [Changelog](https://github.com/symfony/phpunit-bridge/blob/6.3/CHANGELOG.md)
- [Commits](https://github.com/symfony/phpunit-bridge/commits/v7.0.1)

---
updated-dependencies:
- dependency-name: symfony/phpunit-bridge
  dependency-type: direct:development
...

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

composer.json

@@ -29,7 +29,7 @@
         "studio-42/elfinder":                  "~2.1.62"
     },
     "require-dev" : {
-        "symfony/phpunit-bridge":                           "^4.1 || ^5.0 || ^5.2 || ^6.0",
+        "symfony/phpunit-bridge":                           "^7.0.1",
         "matthiasnoback/symfony-config-test":               "^4.0",
         "matthiasnoback/symfony-dependency-injection-test": "^4.1",
         "symfony/finder":                                   "^4.4 || ^5.0 || ^5.2 || ^6.0",