Gia Giudice said it was her “job” to be “calm” during her sister Milania Giudice’s recent airport drama. The 25-year-old broke her silence on the incident by responding to a fan comment on her TikTok video shared Thursday, which showed her getting ready for the “Next Gen NYC” Season 2 reunion. The comment read, “Gia as the older sister trying to be the calm peacemaker I get you 😂😂😂.” Gia replied, “job of being the oldest.” Gia “liked” two other comments that said “praying for your sister” and “you’re a good sister gia.” On Wednesday, Milania shared — and later deleted — a video showing herself in a tense encounter with Gia and their mom,…