Update CHANGELOG.md for 9.2.0

...elogs/unreleased/tc-make-user-master-project-by-admin.yml

changelogs/unreleased/uassign_on_member_removing.yml

changelogs/unreleased/use-hashie-forbidden_attributes.yml

changelogs/unreleased/user-activity-scroll-bar.yml

changelogs/unreleased/winh-german-cycle-analytics.yml

changelogs/unreleased/winh-visual-token-labels.yml

changelogs/unreleased/zj-better-view-pipeline-schedule.yml

changelogs/unreleased/zj-chat-message-pretty-time.yml

changelogs/unreleased/zj-dockerfiles.yml

changelogs/unreleased/zj-real-time-pipelines.yml