More like Dua Leaping. Ahead of her 31st birthday on Saturday, Dua Lipa enjoyed some fun in the sun with her family in Ibiza — and was dressed to the nines, naturally. The “Levitating” songstress was snapped strolling on the beach in a leopard-print Gucci bikini and matching miniskirt, which retail for $850 and $1,150, respectively. Lipa accessorized her vacation look with square-frame sunglasses and kitten-heeled thongs from the Italian luxury label, along with four-figure Chrome Hearts hoop earrings — bringing the total cost of her outfit to nearly $13,000. (And that’s not even factoring in her red croc-embossed Chanel bag, which isn’t…