It’s a milestone for Kim Kardashian and Pete Davidson. Kardashian recently met Davidson’s grandparents on Staten Island when she visited the comedian as he worked on a movie in New York, TMZ reported. The “Keeping Up with the Kardashians” reality star and the “Saturday Night Live” comic were first romantically linked last fall and have been more public about their relationship in recent weeks. Kardashian, 41, told Variety in an article published this month that she isn’t “opposed” to Davidson being featured on her family’s new Hulu series, “The Kardashians,” but said he hadn’t filmed anything …