chore: add vue-next deps

packages/vant-cli/package.json

@@ -62,6 +62,7 @@
     "babel-jest": "^25.3.0",
     "babel-loader": "^8.1.0",
     "babel-plugin-import": "^1.13.0",
+    "babel-plugin-transform-jsx-vue3": "^0.1.8",
     "cache-loader": "^4.1.0",
     "chokidar": "^3.3.1",
     "clean-css": "^4.2.3",
@@ -96,8 +97,8 @@
     "stylelint": "^13.3.1",
     "typescript": "^3.8.3",
     "vue-jest": "4.0.0-beta.2",
-    "vue-loader": "^15.9.1",
-    "vue-router": "^3.1.6",
+    "vue-loader": "^16.0.0-alpha.3",
+    "vue-router": "^4.0.0-alpha.7 ",
     "webpack": "^4.42.1",
     "webpack-dev-server": "3.10.3",
     "webpack-merge": "^4.2.2",