Update symfony/var-dumper requirement from ^4.2 to ^5.2

Updates the requirements on [symfony/var-dumper](https://github.com/symfony/var-dumper) to permit the latest version.
- [Release notes](https://github.com/symfony/var-dumper/releases)
- [Changelog](https://github.com/symfony/var-dumper/blob/5.x/CHANGELOG.md)
- [Commits](symfony/var-dumper@v4.2.0...v5.2.1)

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

Author: dependabot[bot]

composer.json

@@ -38,7 +38,7 @@
     "roave/security-advisories": "dev-master",
     "seregazhuk/php-watcher": "^0.5.1",
     "squizlabs/php_codesniffer": "^3.4",
-    "symfony/var-dumper": "^4.2",
+    "symfony/var-dumper": "^5.2",
     "laminas/laminas-component-installer": "^2.1.2"
   },
   "autoload": {