chore(deps-dev): bump @vue/cli-plugin-babel from 3.12.0 to 4.0.2 (#23)

Bumps [@vue/cli-plugin-babel](https://github.com/vuejs/vue-cli/tree/HEAD/packages/@vue/cli-plugin-babel) from 3.12.0 to 4.0.2.
- [Release notes](https://github.com/vuejs/vue-cli/releases)
- [Changelog](https://github.com/vuejs/vue-cli/blob/dev/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vue-cli/commits/v4.0.2/packages/@vue/cli-plugin-babel)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -17,7 +17,7 @@
     "release": "yarn test:unit && yarn build && np"
   },
   "devDependencies": {
-    "@vue/cli-plugin-babel": "^3.3.0",
+    "@vue/cli-plugin-babel": "^4.0.2",
     "@vue/cli-plugin-eslint": "^4.0.2",
     "@vue/cli-plugin-unit-jest": "^3.3.0",
     "@vue/cli-service": "^4.0.2",