Unable to push to remote after committing files

I am committing some files using pygit2 and want to push to remote branch.
This is what i am doing:

        repo = pygit2.Repository(build_dir)
        branch = repo.lookup_branch(local_branch)
        repo.checkout(branch)
        for fl in files:
           repo.index.add(fl)
        repo.index.write()
        message = f"Commiting files {files}"
        tree = repo.index.write_tree()
        parent, ref = repo.resolve_refish(refish=repo.head.name)
        author = pygit2.Signature("user", "email")
        commiter = pygit2.Signature("user", "email")

        repo.create_commit(
            ref.name,
            author,
            commiter,
            message,
            tree,
            [parent.oid],
        )



        remote = repo.remotes["origin"]
        callbacks = pygit2.RemoteCallbacks(pygit2.UserPass("username", GITHUB_PERSONAL_ACCESS_TOKEN))
        remote.push(['refs/heads/master'],callbacks=callbacks)

And i get an error:
_pygit2.GitError: unsupported URL protocol

I cannot find any documentation or any clarity on whats going on here.

Any help will be much appreciated.

thanks

Comienza inspeccionando la URL origin configurada del repositorio y la llamada a remote.push; después, verifica cómo se utilizan los RemoteCallbacks y las credenciales UserPass proporcionados. Reproduce el error de protocolo de URL no compatible con el código de pygit2 mostrado y compara la configuración del remoto con los protocolos compatibles. La tarea está terminada cuando se haya identificado el problema de configuración o de callback y se haya documentado un push exitoso verificado.