Merge branch 'continuation-of-50878' into 'master'

doc/api/dora4_project_analytics.md

doc/api/epics.md

doc/api/feature_flag_user_lists.md

doc/api/group_labels.md

doc/api/instance_clusters.md

doc/api/issues_statistics.md

doc/api/labels.md

doc/api/merge_request_context_commits.md

doc/api/merge_requests.md

doc/api/milestones.md

doc/api/notes.md

doc/api/oauth2.md

doc/api/project_badges.md

doc/api/project_clusters.md

doc/api/project_snippets.md

doc/api/project_statistics.md

doc/api/project_templates.md

doc/api/projects.md

doc/api/protected_environments.md

doc/api/repositories.md