Update Symfony package versions to include 8.0 (#185)

Author: thecaliskan

composer.json

@@ -14,11 +14,11 @@
         "nyholm/psr7-server": "^1.0",
         "psr/http-factory-implementation": "^1.0",
         "psr/http-server-handler": "^1.0",
-        "symfony/runtime": "^5.4 || ^6.0 || ^7.0"
+        "symfony/runtime": "^5.4.46 || ^6.0 || ^7.0 || ^8.0"
     },
     "require-dev": {
         "nyholm/psr7": "^1.4",
-        "phpunit/phpunit": "^9.5"
+        "phpunit/phpunit": "^10.5.58"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,