chore: upgrade deps (#2642)

closes #2376


* chore: update deps

* fix: remove extraneous require

* fix: force @babel/core resolution to be ^7.0.0

Previously it was interfered by vue-apollo & vuepress 0.14

* fix: sync deps

* chore: update yarn.lock

Author: haoqunjiang

package.json

@@ -22,6 +22,6 @@
   "homepage": "https://github.com/vuejs/vue-cli/tree/dev/packages/@vue/eslint-config-typescript#readme",
   "dependencies": {
     "eslint-plugin-typescript": "^0.12.0",
-    "typescript-eslint-parser": "^18.0.0"
+    "typescript-eslint-parser": "^20.0.0"
   }
 }