chore(deps): update webpack-bundle-analyzer to v3.7.0

[thi-bot]

This PR contains the following updates:

Package	Update	Type	Change	Sourcegraph
webpack-bundle-analyzer	minor	devDependencies	3.6.1 -> 3.7.0

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Release Notes

webpack-contrib/webpack-bundle-analyzer

### [`v3.7.0`](https://togithub.com/webpack-contrib/webpack-bundle-analyzer/blob/master/CHANGELOG.md#​370) [Compare Source](https://togithub.com/webpack-contrib/webpack-bundle-analyzer/compare/v3.6.1...v3.7.0) - **New Feature** - Added JSON output option (`analyzerMode: "json"` in plugin, `--mode json` in CLI) ([#​341](https://togithub.com/webpack-contrib/webpack-bundle-analyzer/pull/341) by [@​Gongreg](https://togithub.com/Gongreg)) - **Improvement** - Persist "Show content of concatenated modules" option ([#​322](https://togithub.com/webpack-contrib/webpack-bundle-analyzer/pull/322) by [@​lorenzos](https://togithub.com/lorenzos))

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