Update lib/convertFormat.js

lib/convertFormat.js

@@ -3,8 +3,8 @@ const FileType = require("file-type");
 
 
 function allToJpg(bufferImage) {
-	return new Promise((resolve, reject) => {
-		FileType.fromBuffer(bufferImage)
+	return new Promise(async(resolve, reject) => {
+		await FileType.fromBuffer(bufferImage)
 			.then((response) => {
 				try {
 					const buffers = [];