refactor(core): fixes n8n-local-rules/no-json-parse-json-stringify warnings (#4407)

* 🔨 fixes

* 🔨 set rule to error

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

@@ -1,5 +1,11 @@
 import { IExecuteFunctions } from 'n8n-core';
-import { IDataObject, INodeExecutionData, INodeType, INodeTypeDescription } from 'n8n-workflow';
+import {
+	deepCopy,
+	IDataObject,
+	INodeExecutionData,
+	INodeType,
+	INodeTypeDescription,
+} from 'n8n-workflow';
 
 import { get, set, unset } from 'lodash';
 import { options } from 'rhea';
@@ -165,7 +171,7 @@ export class RenameKeys implements INodeType {
 
 			// Copy the whole JSON data as data on any level can be renamed
 			newItem = {
-				json: JSON.parse(JSON.stringify(item.json)),
+				json: deepCopy(item.json),
 				pairedItem: {
 					item: itemIndex,
 				},