“Virtual Reali-Tea” takes the Hamptons. Celebrities, influencers and a few “Real Housewives of New York City” legends stepped out for Page Six’s VRT Out East party at Barlume Beach in Montauk Thursday night. Luann de Lesseps, 61, stunned in a hunter green matching set, while Sonja Morgan, 62, dazzled in a gold-sequin leotard and a silky pink floor-length robe. Kelly Bensimon, 58, showed us that less is more when she strutted in wearing a pair of low-rise cutoff denim shorts and a navy blue halter crop top. The evening took place less than one month after it was announced that “The Golden Life,” E!’s spinoff series with the OG “RHONY” cast,…