core: 修复设置中无法取消选中checkbox的问题

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.20.0",
+    "version": "2.20.1",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
@@ -28,7 +28,7 @@
         "minio": "7.0.17",
         "moment-timezone": "^0.5.32",
         "mongodb": "^3.6.4",
-        "nodemailer": "^6.4.18",
+        "nodemailer": "^6.5.0",
         "p-queue": "^6.6.2",
         "serialize-javascript": "^5.0.1",
         "sockjs": "^0.3.20",
@@ -39,16 +39,16 @@
     },
     "devDependencies": {
         "@types/adm-zip": "^0.4.33",
-        "@types/fs-extra": "^9.0.7",
+        "@types/fs-extra": "^9.0.8",
         "@types/inquirer": "^7.3.1",
         "@types/js-yaml": "^4.0.0",
-        "@types/koa": "^2.13.0",
+        "@types/koa": "^2.13.1",
         "@types/koa-router": "^7.4.1",
         "@types/koa-static-cache": "^5.1.0",
         "@types/lodash": "^4.14.168",
         "@types/lru-cache": "^5.1.0",
         "@types/minio": "^7.0.7",
-        "@types/mongodb": "^3.6.8",
+        "@types/mongodb": "^3.6.9",
         "@types/nodemailer": "^6.4.0",
         "@types/serialize-javascript": "^5.0.0",
         "@types/sockjs": "^0.3.32",