Stop diagonal movement 2d top down game

Hello everyone, I am in the process of designing a top down 2d dungeon crawler and I am struggling with stopping my player from moving diagonally. I want it to be so that when I press two keys the first key pressed is the direction that my player moves. Any help would be appreciated.

     public float moveSpeed = 5f;
 public Rigidbody2D leatherMan;
 public Animator animator;
 
 Vector2 movement;

 // Update is called once per frame
 void Update()
 {
    movement.x = Input.GetAxisRaw("Horizontal");
    movement.y = Input.GetAxisRaw("Vertical");

    animator.SetFloat("Horizontal", movement.x);
    animator.SetFloat("Vertical", movement.y);
    animator.SetFloat("Speed", movement.sqrMagnitude);


 }
 
 
 void FixedUpdate() 
 {
    //movement
    leatherMan.MovePosition(leatherMan.position + movement * moveSpeed * Time.fixedDeltaTime);
 }

}