By Lawrence Hurley, Andrew Chung and Richard Cowan WASHINGTON (Reuters) -Ketanji Brown Jackson was confirmed by the Senate on Thursday as the first Black woman to serve on the Supreme Court in a milestone for the United States and a victory for President Joe Biden, who made good on a campaign promise as he seeks to infuse the federal judiciary with a broader range of backgrounds. The vote to confirm the 51-year-old federal appellate judge to a lifetime job on the nation’s top judicial body was 53-47, with three Republicans – Susan Collins, Lisa Murkowski and Mitt Romney – joining Biden’s fello…