utils: 提取公共模块

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.21.1",
+    "version": "2.21.2",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
@@ -11,6 +11,7 @@
         "node": ">=14"
     },
     "dependencies": {
+        "@hydrooj/utils": "^1.0.0",
         "adm-zip": "^0.5.5",
         "ansi_up": "^5.0.0",
         "cookies": "^0.8.0",
@@ -34,7 +35,6 @@
         "serialize-javascript": "^5.0.1",
         "sockjs": "^0.3.20",
         "superagent": "^6.1.0",
-        "systeminformation": "5.6.10",
         "yargs": "^16.2.0"
     },
     "devDependencies": {