Update dependency webpack-hot-server-middleware to v0.6.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
webpack-hot-server-middleware	0.6.0 -> 0.6.1

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Release Notes

60frames/webpack-hot-server-middleware

### [`v0.6.1`](https://togithub.com/60frames/webpack-hot-server-middleware/compare/1d4306c9efab722e4b12ea38752e4e6855e36816...ffcf4139155df48d1faf027ae9fd45d37d96953d) [Compare Source](https://togithub.com/60frames/webpack-hot-server-middleware/compare/1d4306c9efab722e4b12ea38752e4e6855e36816...ffcf4139155df48d1faf027ae9fd45d37d96953d)

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Configuration

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