fix/list-contents: Fix listContents to return iterable FileAttributes

The Flysystem 3.x contract expects that the value of listContents is an
iterable with each element being an instance of FileAttributes. This
changeset fixes this behavior.

Author: brandon14

src/CloudinaryAdapter.php

@@ -296,7 +296,7 @@ public function visibility(string $path): FileAttributes
      *
      * @param string $directory
      * @param bool $hasRecursive
-     * @return array
+     * @return iterable<\League\Flysystem\StorageAttributes>
      */
     public function listContents($directory = '', $hasRecursive = false): iterable
     {
@@ -318,11 +318,30 @@ public function listContents($directory = '', $hasRecursive = false): iterable
 
         // parse resourses
         foreach ($resources as $i => $resource) {
-            $resources[$i] = $this->prepareResourceMetadata($resource);
+            $resources[$i] = $this->prepareFileAttributes($this->prepareResourceMetadata($resource));
         }
         return $resources;
     }
 
+    /**
+     * Transform array of resource metadata into a {@link \League\Flysystem\FileAttributes} instance.
+     *
+     * @param array $metadata
+     *
+     * @return \League\Flysystem\FileAttributes
+     */
+    protected function prepareFileAttributes(array $metadata): FileAttributes
+    {
+        return new FileAttributes(
+            $metadata['path'],
+            $metadata['size'],
+            null,
+            $metadata['timestamp'],
+            $metadata['mimetype'],
+            $metadata
+        );
+    }
+
     /**
      * Prepare apropriate metadata for resource metadata given from cloudinary.
      * @param array $resource