Update dependency @snowpack/plugin-react-refresh to v2.4.2

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@snowpack/plugin-react-refresh	2.4.1 -> 2.4.2

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Release Notes

snowpackjs/snowpack

### [`v2.4.2`](https://togithub.com/snowpackjs/snowpack/compare/@snowpack/plugin-react-refresh@2.4.1...@snowpack/plugin-react-refresh@2.4.2) [Compare Source](https://togithub.com/snowpackjs/snowpack/compare/@snowpack/plugin-react-refresh@2.4.1...@snowpack/plugin-react-refresh@2.4.2)

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