By Alessandro Cinque CUZCO, Peru (Reuters) – Peruvians were protesting rapidly rising prices in the Andean city of Cuzco on Tuesday, in spite of a truce agreement that will see embattled President Pedro Castillo travel to the city later in the week to try to find ways to reduce costs. Peru is battling its highest inflation in over two decades, amid a worldwide price surge most recently triggered by the Russian invasion of Ukraine. Rising prices of essential food items due to reduced supply of fertilizer and fuel has disproportionately affected poor residents in Peru and other emerging economie…