fix(deps): update dependency @astrojs/starlight to v0.23.4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@astrojs/starlight (source)	0.23.3 -> 0.23.4

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Release Notes

withastro/starlight (@​astrojs/starlight)

### [`v0.23.4`](https://togithub.com/withastro/starlight/blob/HEAD/packages/starlight/CHANGELOG.md#0234) [Compare Source](https://togithub.com/withastro/starlight/compare/@astrojs/starlight@0.23.3...@astrojs/starlight@0.23.4) ##### Patch Changes - [#​1955](https://togithub.com/withastro/starlight/pull/1955) [`15ef1f4b`](https://togithub.com/withastro/starlight/commit/15ef1f4bdbf7174134121f4bbdf82ca3903c802a) Thanks [@​HiDeoo](https://togithub.com/HiDeoo)! - Reverts a [change](https://togithub.com/withastro/starlight/pull/1948) to prevent a numbering issue with the `` component in future versions of Chrome.

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