By David Milliken, William Schomberg and Andy Bruce LONDON (Reuters) -The Bank of England sent a stark warning that Britain risks a double-whammy of a recession and inflation above 10% as it raised interest rates on Thursday to their highest since 2009, hiking by a quarter-point to 1%. The pound fell by more than a cent against the U.S. dollar to hit its lowest level since mid-2020, below $1.24, as investors reacted to the darker economic forecasts. They also trimmed bets on the central bank hiking rates aggressively this year. Short-dated British government bond yields slid sharply. The BoE’s…