修复hydrojudge模块加载异常的问题

packages/hydrojudge/package.json

@@ -1,7 +1,7 @@
 {
     "name": "@hydrooj/hydrojudge",
-    "version": "2.0.6",
-    "main": "dist/service.js",
+    "version": "2.0.7",
+    "main": "package.json",
     "author": "masnn",
     "os": [
         "linux"

packages/hydrojudge/service.js

@@ -0,0 +1 @@
+module.exports = require('dist/service.js');