refactor: Remove more promise awaits (#28796)

apps/meteor/app/2fa/server/code/EmailCheck.ts

apps/meteor/app/2fa/server/functions/resetTOTP.ts

apps/meteor/app/authentication/server/startup/index.js

apps/meteor/app/integrations/server/lib/triggerHandler.js

...eteor/app/invites/server/functions/sendInvitationEmail.ts

apps/meteor/app/lib/server/functions/saveUser.js

apps/meteor/app/lib/server/functions/setEmail.ts

apps/meteor/app/lib/server/methods/sendSMTPTestEmail.ts

apps/meteor/app/livechat/server/lib/Livechat.js

apps/meteor/app/livechat/server/lib/LivechatTyped.ts

apps/meteor/app/mail-messages/server/functions/sendMail.ts

apps/meteor/app/mailer/server/api.ts

...meteor/app/notification-queue/server/NotificationQueue.ts

apps/meteor/ee/server/lib/deviceManagement/session.ts

apps/meteor/server/lib/dataExport/processDataDownloads.ts

apps/meteor/server/lib/dataExport/sendEmail.ts

apps/meteor/server/lib/dataExport/sendFile.ts

apps/meteor/server/lib/dataExport/sendViaEmail.ts

apps/meteor/server/lib/resetUserE2EKey.ts