Update dependency FSharp.Formatting to v20

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
FSharp.Formatting (source)	18.1.1 -> 20.0.1

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Release Notes

fsprojects/FSharp.Formatting (FSharp.Formatting)

### [`v20.0.1`](https://togithub.com/fsprojects/FSharp.Formatting/blob/HEAD/RELEASE_NOTES.md#2001---2024-05-31) - Details improvements. [#​917](https://togithub.com/fsprojects/FSharp.Formatting/pull/917) ### [`v20.0.0`](https://togithub.com/fsprojects/FSharp.Formatting/blob/HEAD/RELEASE_NOTES.md#2000---2024-02-14) Stable release ### [`v19.1.1`](https://togithub.com/fsprojects/FSharp.Formatting/blob/HEAD/RELEASE_NOTES.md#1911---2023-10-10) - Fix code rendering on firefox. [#​851](https://togithub.com/fsprojects/FSharp.Formatting/pull/851) ### [`v19.1.0`](https://togithub.com/fsprojects/FSharp.Formatting/blob/HEAD/RELEASE_NOTES.md#1910---2023-09-15) - Only reload css file when changed. [#​845](https://togithub.com/fsprojects/FSharp.Formatting/pull/845) - Add previous and next page url substitutions. [#​846](https://togithub.com/fsprojects/FSharp.Formatting/pull/846) ### [`v19.0.0`](https://togithub.com/fsprojects/FSharp.Formatting/blob/HEAD/RELEASE_NOTES.md#1900---2023-08-22) - Update FCS to 43.7.400

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