fix(core): make deepCopy backward compatible (#4505)

* fix(core): make `deepCopy` backward compatible

`JSON.parse(JSON.stringify())`  uses `.toJSON` when available. so should `deepCopy`

* fix(core): prevent double quotes on luxon datetimes (#4508)

* 🐛 Prevent double quotes on luxon datetimes

* ⚡ Generalize solution

* update the types in packages/workflow/src/utils.ts

* add `toJSON` check to NodeErrors.isTraversableObject as well

* move the toJSON check before the cyclic dependency check

* fix(core): keep backward compatibility in deepCopy by calling `toJSON` on objects that have it

* fix(core): updating deepCopy typings

* Revert "fix(core): updating deepCopy typings"

This reverts commit 100a0f1f3d7ddac5425ccc8498381324f418d7a2.

* fix(core): temporarily removing Date cloning from deepCopy

* fix(core): updating deepCopy types

* fix(core): updating deepCopy

* fix(core): updating deepCopy get prototype of object

Co-authored-by: Iván Ovejero <ivov.src@gmail.com>
Co-authored-by: Csaba Tuncsik <csaba@n8n.io>

packages/workflow/src/NodeErrors.ts

@@ -176,8 +176,12 @@ abstract class NodeError extends ExecutionBaseError {
 	// eslint-disable-next-line @typescript-eslint/no-explicit-any
 	protected isTraversableObject(value: any): value is JsonObject {
 		return (
+			value &&
+			typeof value === 'object' &&
+			!Array.isArray(value) &&
+			typeof value.toJSON !== 'function' &&
 			// eslint-disable-next-line @typescript-eslint/no-unsafe-argument
-			value && typeof value === 'object' && !Array.isArray(value) && !!Object.keys(value).length
+			!!Object.keys(value).length
 		);
 	}