fix(laravel): fix use laravel fillable for writable props (api-platform#6898)

Closes: api-platform#6875

Author: toitzi

src/Laravel/Eloquent/Metadata/Factory/Property/EloquentPropertyMetadataFactory.php

@@ -88,7 +88,7 @@ public function create(string $resourceClass, string $property, array $options =
 
             return $propertyMetadata
                 ->withBuiltinTypes([$type])
-                ->withWritable($propertyMetadata->isWritable() ?? true)
+                ->withWritable($propertyMetadata->isWritable() ?? true === $p['fillable'])
                 ->withReadable($propertyMetadata->isReadable() ?? false === $p['hidden']);
         }
 

src/Laravel/workbench/app/Models/Vault.php

@@ -42,6 +42,10 @@ class Vault extends Model
 {
     use HasFactory;
 
+    protected $fillable = [
+        'secret',
+    ];
+
     public static function provide(): self
     {
         $v = new self();