Bug: refObj returned from useRef is not sealed

[Ahmed-Abou-Emran]

React version: ^18.0.0

Steps To Reproduce

1. Create a ref using useRef.
2. Trying to delete the current property or add a new property.
   

Link to code example: https://codesandbox.io/p/sandbox/funny-sid-pm6xzq?file=%2Fsrc%2FApp.js%3A12%2C41

The current behavior

The current property is deleted, and a new property is added when trying to add it to the ref Object

The expected behavior

ref Object is sealed, so we should only be allowed to change its current value but not being able to delete it or add a new property to the object.

both createRef and useRef are sealed but only the ref object returned from createRef is selaed:

useRef:mountRef : link

createRef: Link