Update composer.json (#84)

Allow symfony/process 7.x

Author: thecaliskan

composer.json

@@ -30,7 +30,7 @@
         "symfony/phpunit-bridge": "^4.2 || ^5",
         "phpstan/phpstan": "^0.12.55",
         "psr/log": "^1.0",
-        "symfony/process": "^2.5 || ^3.0 || ^4.0 || ^5.0 || ^6.0"
+        "symfony/process": "^2.5 || ^3.0 || ^4.0 || ^5.0 || ^6.0 || ^7.0"
     },
     "autoload": {
         "psr-4": {