更新依赖

package.json

 {
   "devDependencies": {
-    "@vuepress/plugin-docsearch": " 2.0.0-beta.37",
-    "@vuepress/plugin-git": " 2.0.0-beta.37",
-    "@vuepress/plugin-google-analytics": " 2.0.0-beta.37",
-    "@vuepress/plugin-medium-zoom": " 2.0.0-beta.37",
-    "@vuepress/plugin-nprogress": " 2.0.0-beta.37",
-    "@vuepress/plugin-pwa": " 2.0.0-beta.37",
-    "@vuepress/plugin-pwa-popup": " 2.0.0-beta.37",
-    "@vuepress/plugin-register-components": " 2.0.0-beta.37",
-    "@vuepress/plugin-toc": " 2.0.0-beta.37",
-    "vuepress": " 2.0.0-beta.37"
+    "@vuepress/plugin-docsearch": "next",
+    "@vuepress/plugin-git": "next",
+    "@vuepress/plugin-google-analytics": "next",
+    "@vuepress/plugin-medium-zoom": "next",
+    "@vuepress/plugin-nprogress": "next",
+    "@vuepress/plugin-pwa": "next",
+    "@vuepress/plugin-pwa-popup": "next",
+    "@vuepress/plugin-register-components": "next",
+    "@vuepress/plugin-toc": "next",
+    "vuepress": "next"
   },
   "scripts": {
     "docs:dev": "vuepress dev docs",