Availability Update

• Please check this box if this contribution uses AI-generated content (including content generated by GitLab Duo features) as outlined in the GitLab DCO & CLA

Why is this change being made?

💡 Provide a detailed answer to the question on why this change is being proposed, in accordance with our value of [Transparency][transparency].

To meet requirements described here: https://handbook.gitlab.com/handbook/engineering/infrastructure/team/ops/#monthly-availability-updates

• Availability Update for GitLab.com

Update the handbook page with past availability numbers.

Grafana view: https://dashboards.gitlab.net/d/general-slas/general3a-slas?orgId=1&viewPanel=4

NOTE: Auto-generated with https://gitlab.com/gitlab-com/gl-infra/ops-team/toolkit/availability-update