Fix styling

Author: cklei-carly

src/Licensing/LicenseManager.php

@@ -34,11 +34,11 @@ public function canUpgrade(): bool
         if (empty($licenseKey)) {
             return false; // No license key configured
         }
-        
+
         try {
 
             $this->verify();
-        
+
             $cacheKey = $this->buildCacheKey();
 
             if (($verificationResult = $this->cache()->get($cacheKey)) && $verificationResult instanceof LicenseVerificationResult) {

src/Licensing/LicenseVerificationResult.php

@@ -16,7 +16,7 @@ public function __construct(
         /** @var ?array */
         protected $data = null
     ) {
-        if (!is_array($data)) {
+        if (! is_array($data)) {
             unset($this->data);
         }
     }
@@ -37,7 +37,7 @@ public function getMessage(): string
         return $this->message;
     }
 
-    public function getData(): array|null
+    public function getData(): ?array
     {
         return $this->data;
     }