INDIANA, Pa., July 20, 2023 /PRNewswire/ — S&T Bancorp, Inc. (S&T) (NASDAQ: STBA), the holding company for S&T Bank, announced net income of $34.5 million, or $0.89 per diluted share, for the second quarter of 2023 compared to net income of $39.8 million, or $1.02 per diluted share, for…