Merge remote-tracking branch 'origin/release-6.12.0' into develop

.changeset/bump-patch-1724712948901.md

.changeset/bump-patch-1724977971712.md

.changeset/bump-patch-1725326060827.md

.changeset/bump-patch-1725387211812.md

.changeset/orange-clocks-wait.md

.changeset/pre.json

.changeset/smart-baboons-allow.md

apps/meteor/CHANGELOG.md

apps/meteor/app/api/server/v1/rooms.ts

apps/meteor/app/api/server/v1/users.ts

apps/meteor/app/file-upload/server/lib/FileUpload.ts

...meteor/app/lib/server/functions/getModifiedHttpHeaders.ts

apps/meteor/app/lib/server/lib/debug.js

apps/meteor/app/lib/server/lib/notifyUsersOnMessage.ts

apps/meteor/app/livechat/imports/server/rest/sms.ts

apps/meteor/app/livechat/server/api/v1/room.ts

apps/meteor/app/livechat/server/api/v1/visitor.ts

...eteor/app/livechat/server/hooks/processRoomAbandonment.ts

apps/meteor/app/utils/rocketchat.info

apps/meteor/client/startup/accounts.ts