Allow Symfony 7 (#33)

Author: tborealis

composer.json

@@ -16,11 +16,11 @@
     },
     "require": {
         "php": "^8.0",
-        "symfony/config": "^5.4|^6.0",
-        "symfony/dependency-injection": "^5.4|^6.0",
-        "symfony/http-kernel": "^5.4|^6.0",
-        "symfony/process": "^5.4|^6.0",
-        "symfony/stopwatch": "^5.4|^6.0"
+        "symfony/config": "^5.4|^6.0|^7.0",
+        "symfony/dependency-injection": "^5.4|^6.0|^7.0",
+        "symfony/http-kernel": "^5.4|^6.0|^7.0",
+        "symfony/process": "^5.4|^6.0|^7.0",
+        "symfony/stopwatch": "^5.4|^6.0|^7.0"
     },
     "require-dev": {
         "phpunit/phpunit": "~9.0",