By Victoria Waldersee DAVOS, Switzerland (Reuters) -China needs to be involved in talks to end the war with Russia, Ukraine’s top representative said after a high-level diplomatic meeting ahead of the World Economic Forum in Switzerland. Ukraine’s presidential chief of staff Andriy Yermak said on Sunday it was important that Russian ally China was at the table when Kyiv convenes further meetings on its peace formula. Chinese Premier Li Qiang will lead a delegation in Davos this week. Asked if President Volodymyr Zelenskiy would meet Li, Yermak told a news briefing “let’s see”, adding he had no…