Third time wasn’t the charm for Sean Penn. The Oscar winner’s divorce from Leila George, who he married in 2020, was finalized Friday, according to court documents obtained by TMZ. The 30-year-old Australian-born actress — whose parents are actors Vincent D’Onofrio and Greta Scacchi — filed for divorce from the “Licorice Pizza” actor, 61, last October. Penn and George, who acted in D’Onofrio’s “The Kid,” were in an on-and-off-again relationship from 2016 until their 2020 nuptials — the third for Penn. The “Milk” star from 1996 to 2010 was married to Robin Wright, with whom he shares daughter D…