By Koh Gui Qing NEW YORK (Reuters) -Government bond yields resumed their upward climb on Friday as a key part of the U.S. Treasury yield curve inverted once more on signs of persistent inflation, while falling oil prices ended the week with their sharpest weekly drop in two years. U.S. data released on Friday showed employers added 431,000 jobs in March and the unemployment rate fell to 3.6%, continuing a strong run of hiring that has left key aspects of the American labor market “little different” from where they were before the COVID-19 pandemic. With U.S. economic growth so robust and infla…