As Mr/Ms Burrows says, not likely. as Italians would not want this. I've not been on the melody but have been on other MSC ships and they didn't have this

We've done quite a lot of cruising with various cruise lines from 5*+ down and never had tea/coffee making facilities in our cabins As previously stated it's easy to request room service bit just as easy and a lot quicker to take a travel kettle and tea bags instant coffee etc with you! just erquest milk from room service daily and pop it in your fridge.