core: feedback: ignore CI environment

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "3.15.11",
+    "version": "3.15.12",
     "bin": "bin/hydrooj.js",
     "main": "src/loader",
     "module": "src/loader",

packages/hydrooj/src/service/monitor.ts

@@ -61,6 +61,7 @@ export async function feedback(): Promise<[string, StatusUpdate]> {
             return value;
         },
     }));
+    if (process.env.CI) return [mid, $update];
     superagent.post(`${system.get('server.center')}/report`)
         .send({ installId, payload })
         .then((res) => {