I reported my manager and now nobody speaks freely around me

Dear Delyara, I reported my manager for falsifying safety records. An internal investigation confirmed it. He was dismissed. The company thanked me for speaking up and sent an email about integrity. My colleagues stopped inviting me for drinks. Nobody says anything directly. Conversations change when I enter the break room. People joke that I am “compliance” now. One friend told me privately that although I was right, people worry anything they say around me might be reported. I have never reported gossip or minor mistakes. I reported records that could have put people in danger. Apparently, principle does not make you socially comfortable afterward. I kept my job. My reputation changed shape. Yesterday, a new colleague asked why everyone becomes quiet around me. I said I did not know. Another lie in a workplace where I supposedly proved I value truth. I would report the safety issue again. I just did not know doing the right thing could make every ordinary conversation feel like a room that closes when you enter.