Updates my team member file

Why is this change being made?

This MR adds the docs maintainer role for GitLab projects.

Relates to: https://gitlab.com/gitlab-org/technical-writing/-/issues/887+ and https://gitlab.com/gitlab-com/team-member-epics/access-requests/-/issues/25298+

Note: This MR should be merged only after https://gitlab.com/gitlab-com/team-member-epics/access-requests/-/issues/25298 is complete.

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