fix(deps): update dependency org.webjars.npm:whatwg-fetch to v3.6.20

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.webjars.npm:whatwg-fetch (source)	3.6.2 -> 3.6.20

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Release Notes

JakeChampion/fetch (org.webjars.npm:whatwg-fetch)

### [`v3.6.20`](https://redirect.github.com/JakeChampion/fetch/blob/HEAD/CHANGELOG.md#3620-2023-12-13) ##### Bug Fixes - Response.error().ok === false ([#​1412](https://redirect.github.com/JakeChampion/fetch/issues/1412)) ([27e1c75](https://redirect.github.com/JakeChampion/fetch/commit/27e1c75f830f0b70a40b511e03652776951aca75))

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