Fix email subject for status email

Currently the email for status change uses the id field.
It should use the Number field.
https://github.com/Peppermint-Lab/peppermint/blob/f525bd650cdff7c625afcb9ba81cbe8ce59c672e/apps/api/src/lib/nodemailer/ticket/status.ts#L54