Creating a personal access token : 
https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token

THEN :
git remote -v
git remote set-url origin https://:@github.com:/.git

exemple :
git remote set-url origin https://Trinix:ght_exempleoftoken@github.com:Trinix/NFT-Platform.git