By Lucia Mutikani WASHINGTON (Reuters) – The number of Americans filing new claims for unemployment benefits increased moderately last week, indicating the labor market remains tight despite the Federal Reserve’s attempt to cool demand with aggressive interest rate increases. The weekly unemployment claims report from the Labor Department on Thursday, the most timely data on the economy’s health, suggested that job growth remained solid this month. The U.S. central bank delivered a 75-basis-point rate hike on Wednesday, its third straight increase of that magnitude. It signaled more large incr…