chore(deps): update webpack-bundle-analyzer to v4

[thi-bot]

This PR contains the following updates:

Package	Update	Type	Change
webpack-bundle-analyzer	major	devDependencies	3.9.0 -> 4.1.0

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Release Notes

webpack-contrib/webpack-bundle-analyzer

### [`v4.1.0`](https://togithub.com/webpack-contrib/webpack-bundle-analyzer/blob/master/CHANGELOG.md#​410) [Compare Source](https://togithub.com/webpack-contrib/webpack-bundle-analyzer/compare/v4.0.0...v4.1.0) - **Improvement** - Significantly speed up generation of `stats.json` file (see `generateStatsFile` option). ### [`v4.0.0`](https://togithub.com/webpack-contrib/webpack-bundle-analyzer/blob/master/CHANGELOG.md#​400) [Compare Source](https://togithub.com/webpack-contrib/webpack-bundle-analyzer/compare/e4b2677b11b86b11984aebc2a17cd0c1bea22595...v4.0.0) - **Breaking change** - Dropped support for Node.js 6 and 8. Minimal required version now is v10.13.0 - **Improvement** - Support for Webpack 5 - **Bug Fix** - Prevent crashes when `openAnalyzer` was set to true in environments where there's no program to handle opening. ([#​382](https://togithub.com/webpack-contrib/webpack-bundle-analyzer/pull/382) by [@​wbobeirne](https://togithub.com/wbobeirne)) - **Internal** - Updated dependencies - Added support for multiple Webpack versions in tests

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