chore(deps): update dependency @astrojs/starlight to v0.30.4 (#892)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@astrojs/starlight](https://starlight.astro.build)
([source](https://redirect.github.com/withastro/starlight/tree/HEAD/packages/starlight))
| [`0.30.3` ->
`0.30.4`](https://renovatebot.com/diffs/npm/@astrojs%2fstarlight/0.30.3/0.30.4)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/@astrojs%2fstarlight/0.30.4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@astrojs%2fstarlight/0.30.4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@astrojs%2fstarlight/0.30.3/0.30.4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@astrojs%2fstarlight/0.30.3/0.30.4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>withastro/starlight (@&#8203;astrojs/starlight)</summary>

###
[`v0.30.4`](https://redirect.github.com/withastro/starlight/blob/HEAD/packages/starlight/CHANGELOG.md#0304)

[Compare
Source](https://redirect.github.com/withastro/starlight/compare/@astrojs/[email protected]...@astrojs/[email protected])

##### Patch Changes

-
[#&#8203;2747](https://redirect.github.com/withastro/starlight/pull/2747)
[`474c27e`](https://redirect.github.com/withastro/starlight/commit/474c27e28d79794ac78d36e3384f0c0da6f2dfed)
Thanks [@&#8203;bbag](https://redirect.github.com/bbag)! - Ensures
`<Tab>` component toggling is stable when smooth scrolling is enabled
via custom CSS

-
[#&#8203;2740](https://redirect.github.com/withastro/starlight/pull/2740)
[`0e169c9`](https://redirect.github.com/withastro/starlight/commit/0e169c9fd9fbfc16d86225db6b00448edf39ffad)
Thanks [@&#8203;HiDeoo](https://redirect.github.com/HiDeoo)! - Fixes an
issue preventing Pagefind to be disabled using the `pagefind`
frontmatter field.

-
[#&#8203;2732](https://redirect.github.com/withastro/starlight/pull/2732)
[`a10b466`](https://redirect.github.com/withastro/starlight/commit/a10b46680810882b029dd1d578cc86e22bc97af5)
Thanks [@&#8203;Sidnioulz](https://redirect.github.com/Sidnioulz)! -
Adds Storybook, Confluence and Jira social icons

</details>

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