Merge pull request #15 from php-school/workshop-4

Upgrade workshop

Author: AydinHassan

composer.json

@@ -12,7 +12,7 @@
     ],
     "require" : {
         "php" : ">=7.3",
-        "php-school/php-workshop": "^3.0"
+        "php-school/php-workshop": "^4.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^9",