added dependencies

vendor/chillerlan/php-qrcode/src/Output/QRGdImagePNG.php

@@ -0,0 +1,33 @@
+<?php
+/**
+ * Class QRGdImagePNG
+ *
+ * @created      25.10.2023
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2023 smiley
+ * @license      MIT
+ *
+ * @noinspection PhpComposerExtensionStubsInspection
+ */
+
+namespace chillerlan\QRCode\Output;
+
+use function imagepng, max, min;
+
+/**
+ * GdImage png output
+ *
+ * @see \imagepng()
+ */
+class QRGdImagePNG extends QRGdImage{
+
+	public const MIME_TYPE = 'image/png';
+
+	/**
+	 * @inheritDoc
+	 */
+	protected function renderImage():void{
+		imagepng($this->image, null, max(-1, min(9, $this->options->quality)));
+	}
+
+}