Waterproof laminate doesn't exist. You can put a vapor barrier underneath and try and seal the top, but you won't be able to guarantee that it won't warp if you get a small leak.

Look at Vinyl tile or sheet vinyl. It would be a perfect short-term solution. Should be easy enough to peel up in the future, and will cost hardly anything. It is 100% waterproof, so no worries about spills, and will even give a bit of cushion and insulation to the floor.