A Saudi cartoonist who once drew for a Qatari newspaper, has been sentenced to 23 years in prison, an activist group says. The sentence for Mohammed al-Ghamdi marks the latest in a widening crackdown on any perceived dissent in Saudi Arabia since the rise of Crown Prince Mohammed bin Salman, now seen as the kingdom’s day-to-day ruler in place of his 88-year-old father King Salman. Saudi officials did not respond to a request for comment Tuesday from The Associated Press. Al-Ghamdi drew under the pen name Al-Hazza, with some of his cartoons poking fun at challenges during the holy Muslim fastin…