⚡ Tolerate missing json key in function node output (#2885)

* 🔨 implemented Tolerate missing json key in function node output

* 🔨 clean up

* Small change to code

* ⚡ tolerate returning object

* ⚡ Rename function

Co-authored-by: Omar Ajoue <krynble@gmail.com>
Co-authored-by: Jan Oberhauser <jan.oberhauser@gmail.com>

packages/nodes-base/nodes/Function/Function.node.ts

@@ -119,6 +119,8 @@ return items;`,
 		try {
 			// Execute the function code
 			items = (await vm.run(`module.exports = async function() {${functionCode}\n}()`, __dirname));
+			items = this.helpers.normalizeItems(items);
+
 			// Do very basic validation of the data
 			if (items === undefined) {
 				throw new NodeOperationError(this.getNode(), 'No data got returned. Always return an Array of items!');