You can either change the sudo config for the user owen with this command:
sudo visudo -f /etc/sudoers
and change the line with user owen to this:
owen ALL=(ALL) NOPASSWD:ALL
then sudo won't require Ansible to enter the password. Or you could instruct Ansible to ask you for the password with the parameter --ask-become-pass
like this:
ansible-playbook site.yml --ask-become-pass