chore: updated dependencies to latest versions

Author: matthiasstern

composer.json

@@ -25,14 +25,14 @@
     }
   ],
   "require": {
-    "php": "^7.2|^8.0",
-    "illuminate/contracts": "^7.0|^8.0",
-    "symfony/yaml": "^4.1 || ^5.0",
+    "php": "^7.4|^8.0",
+    "illuminate/contracts": "^8.64",
+    "symfony/yaml": "^5.3",
     "justinrainbow/json-schema": "^5.2"
   },
   "require-dev": {
-    "phpunit/phpunit": "^6.5|^9.0",
-    "squizlabs/php_codesniffer": "^3.2"
+    "phpunit/phpunit": "^9.5",
+    "squizlabs/php_codesniffer": "^3.6"
   },
   "autoload": {
     "psr-4": {