test: add legacy plugin versions to dev deps, speeding up the upgrader test

Author: haoqunjiang

packages/@vue/cli/package.json

@@ -58,5 +58,10 @@
   },
   "engines": {
     "node": ">=8.9"
+  },
+  "devDependencies": {
+    "plugin-babel-3.5.3": "npm:@vue/cli-plugin-babel@3.5.3",
+    "plugin-babel-3.8.0": "npm:@vue/cli-plugin-babel@3.8.0",
+    "plugin-eslint-3.0.0": "npm:@vue/cli-plugin-eslint@3.0.0"
   }
 }