Bump webpack-dev-middleware from 3.4.0 to 5.0.0

Bumps [webpack-dev-middleware](https://github.com/webpack/webpack-dev-middleware) from 3.4.0 to 5.0.0.
- [Release notes](https://github.com/webpack/webpack-dev-middleware/releases)
- [Changelog](https://github.com/webpack/webpack-dev-middleware/blob/master/CHANGELOG.md)
- [Commits](webpack/webpack-dev-middleware@v3.4.0...v5.0.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]