Adding Staff Level Ops Manager role to the Job Family

Why is this change being made?

This is copying over the MR that was being worked on - gitlab-com/www-gitlab-com!114176 (comment 1360782447)

We are creating an IC Manager role that will own a large scope of work than the Senior Analyst. This role has been reviewed with @jdbeaumont and is a business need to scale the team.

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