git remote add origin https://[USERNAME]:[NEW TOKEN]@github.com/[USERNAME]/[REPO].git
//how to generate token : https://docs.github.com/en/github/authenticating-to-github/keeping-your-account-and-data-secure/creating-a-personal-access-token
//or if you have set origin before 
git remote set-url origin https://[USERNAME]:[NEW TOKEN]@github.com/[USERNAME]/[REPO].git