By Kate Abnett, Alexander Cornwell and Elizabeth Piper DUBAI (Reuters) -Azerbaijan is tipped to host next year’s U.N. climate summit, after striking a late deal with longtime adversary Armenia over its bid. While some diplomats said other countries including Russia – which has blocked other host candidates – were expected to back Baku’s bid, there was no official confirmation from Moscow on Friday. The issue is still being negotiated at the COP28 climate summit in Dubai. The decision over who will take over from current COP28 host, the United Arab Emirates, has been in an unprecedented geopoli…