Upgrades dependencies

Author: nunomaduro

composer.json

@@ -21,9 +21,9 @@
         "php": "^7.3|^8.0"
     },
     "require-dev": {
-        "pestphp/pest": "^1.18",
-        "phpstan/phpstan": "^0.12.98",
-        "symfony/var-dumper": "^5.3"
+        "pestphp/pest": "^1.21.3",
+        "phpstan/phpstan": "^1.8.2",
+        "symfony/var-dumper": "^5.4.11"
     },
     "autoload": {
         "psr-4": {

src/Serializers/Signed.php

@@ -83,6 +83,9 @@ public function __unserialize($signature)
             throw new InvalidSignatureException();
         }
 
-        $this->closure = unserialize($signature['serializable'])->getClosure();
+        /** @var \Laravel\SerializableClosure\Contracts\Serializable $serializable */
+        $serializable = unserialize($signature['serializable']);
+
+        $this->closure = $serializable->getClosure();
     }
 }