Remove rymai from the Contributor Success team

What does this MR do and why?

As discussed with @meks, now that the team is getting stronger and given that the EP team needs a strong focus, I’m stepping out of the Contributor Success team, and will not attend the team meeting anymore. Feel free to continue to ping me on things where my input/feedback is needed of course. 🙏🏼

Expected impact & dry-runs

These are strongly recommended to assist reviewers and reduce the time to merge your change.

See https://gitlab.com/gitlab-org/quality/triage-ops/-/tree/master/doc/scheduled#testing-with-a-dry-run on how to perform dry-runs.

Action items

• (If applicable) Add documentation to the handbook pages for Triage Operations =>
• (If applicable) Identify the affected groups and how to communicate to them:
  • /cc @person_or_group =>
  • Relevant Slack channels =>
  • Engineering week-in-review