By Alun John LONDON (Reuters) – Sterling traders are betting that sticky inflation will outweigh slowing retail sales when the Bank of England puts economic data on the scales and makes its next interest rate decisions. The pound finished the last, data-packed, week slightly stronger against the euro for a fourth successive time, and is up year-to-date on all G10 currencies barring the resurgent U.S. dollar. The latest data from the U.S. markets regulator meanwhile showed speculators adding to their bullish bets on sterling for a third week in a row. The takeaway from data showing slowing wage…