Update feature categories to 2024-04-08

What does this MR do and why?

Depends on gitlab-com/runbooks!7078 (merged). Closes gitlab-com/gl-infra/scalability#3384 (closed).

• Update of feature categories.
• The runner_saas category had to be renamed to hosted_runners, according to gitlab-com/www-gitlab-com@a72c4253.
• Upstream MR merged

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