Fix #849: Update converters type in read_excel for better Pyright compatibility#1297

Sachi-Parashar wants to merge 4 commits intopandas-dev:mainpandas-dev/pandas-stubs:mainfrom

Sachi-Parashar:fix-read_excel-convertersSachi-Parashar/pandas-stubs:fix-read_excel-convertersCopy head branch name to clipboard