Bump webpack-bundle-analyzer from 2.13.1 to 3.6.0

Bumps [webpack-bundle-analyzer](https://github.com/webpack-contrib/webpack-bundle-analyzer) from 2.13.1 to 3.6.0.
- [Release notes](https://github.com/webpack-contrib/webpack-bundle-analyzer/releases)
- [Changelog](https://github.com/webpack-contrib/webpack-bundle-analyzer/blob/master/CHANGELOG.md)
- [Commits](webpack/webpack-bundle-analyzer@v2.13.1...v3.6.0)

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

Author: dependabot[bot]

package.json

@@ -70,7 +70,7 @@
     "url-loader": "^1.0.1",
     "vue-style-loader": "^4.1.0",
     "webpack": "^3.11.0",
-    "webpack-bundle-analyzer": "^2.2.1",
+    "webpack-bundle-analyzer": "^3.6.0",
     "webpack-dev-middleware-hard-disk": "^1.12.0",
     "webpack-merge": "^4.1.0",
     "webpack-mpvue-asset-plugin": "^0.1.2",