Update documentation to reflect use of runner-token
What does this MR do?
Update the install Runner using Operator
to reflect the use of runner-token
Why was this MR needed?
To stop referring to a deprecated registration token
What's the best way to test this MR?
What are the relevant issue numbers?
https://gitlab.com/gitlab-com/account-management/western-north-america/google-cloud-gdch/-/issues/18