fix: filter __proto__ in utils.clone()

[janl]

Overview

Makes clone() a bit safer to use

Testing recommendations

• npm run test-unit, should not affect end users

Related Issues or Pull Requests

• none

Checklist

• I am not a bot
• This is my own work, I did not use AI, LLM's or similar technology for code or docs generation
• Code is written and works correctly
• Changes are covered by tests

No applicable:

• I modified the types to reflect the changes, if necessary
• Documentation changes were made in the docs folder