* 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 100a0f1f3d.
* 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>
