Update dependency whatwg-fetch to v3.6.20

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
whatwg-fetch	3.6.19 -> 3.6.20

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Release Notes

github/fetch (whatwg-fetch)

### [`v3.6.20`](https://togithub.com/github/fetch/blob/HEAD/CHANGELOG.md#3620-2023-12-13) [Compare Source](https://togithub.com/github/fetch/compare/v3.6.19...v3.6.20) ##### Bug Fixes - Response.error().ok === false ([#​1412](https://togithub.com/JakeChampion/fetch/issues/1412)) ([27e1c75](https://togithub.com/JakeChampion/fetch/commit/27e1c75f830f0b70a40b511e03652776951aca75))

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Configuration

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🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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[sonarcloud[bot]]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

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