By Johann M Cherian and Devik Jain (Reuters) – The main UK stock indexes snapped a three-session winning streak on Wednesday, dragged down by financials and miners, while Tesco’s profit forecast fanned worries of a worsening cost-of-living crisis in Britain and rattled the retail sector. The export-oriented FTSE 100 ended 0.5% lower, while the more domestically oriented FTSE 250 closed 1.5% down. Weighing the most on the FTSE 100 was the financial sector, which slipped 1.5%, while precious metal miners dropped 2.2%. Further weighing on the mood, U.S. data showed a spurt in private sector hirin…