Fix param types (#336)

Author: augusl

src/Entity/Image.php

@@ -28,7 +28,7 @@ final class Image extends AbstractEntity
 
     public string $distribution;
 
-    public string $slug;
+    public ?string $slug;
 
     public int $minDiskSize;
 

src/Entity/Size.php

@@ -30,7 +30,7 @@ final class Size extends AbstractEntity
 
     public int $disk;
 
-    public int $transfer;
+    public int|float $transfer;
 
     public int|float $priceMonthly;