Changes to Create schedule

the created_at response's property type changed from string to no type for status 200

the timezone response's property type changed from string to no type for status 200

the user_name response's property type changed from string to no type for status 200

the allOf[#/components/schemas/CreateOrUpdateScheduleRequest]/timezone request property type was generalized from string to no type

the created_at response's property pattern \d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(([+-]\d{2}:\d{2})|Z) was removed for the status 200