Rename createContact event

[FelixMalfait]

See: https://github.com/twentyhq/twenty/blob/d07dc1112476bbed627f0a2599d060e537c57f65/packages/twenty-server/src/modules/calendar/services/google-calendar-sync/google-calendar-sync.service.ts#L366

Event name should adopt a standard format (e.g. xxx.created) ; if it's an an then we probably want to dispatch a job instead