fix(deps): update dependency astro to v4.6.4 (#535)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [astro](https://astro.build)
([source](https://togithub.com/withastro/astro/tree/HEAD/packages/astro))
| [`4.6.3` ->
`4.6.4`](https://renovatebot.com/diffs/npm/astro/4.6.3/4.6.4) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/astro/4.6.4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/astro/4.6.4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/astro/4.6.3/4.6.4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/astro/4.6.3/4.6.4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>withastro/astro (astro)</summary>

###
[`v4.6.4`](https://togithub.com/withastro/astro/blob/HEAD/packages/astro/CHANGELOG.md#464)

[Compare
Source](https://togithub.com/withastro/astro/compare/[email protected]@4.6.4)

##### Patch Changes

- [#&#8203;10846](https://togithub.com/withastro/astro/pull/10846)
[`3294f7a`](https://togithub.com/withastro/astro/commit/3294f7a343e036d2ad9ac8d5f792ad0d4f43a399)
Thanks [@&#8203;matthewp](https://togithub.com/matthewp)! - Prevent
getCollection breaking in vitest

- [#&#8203;10856](https://togithub.com/withastro/astro/pull/10856)
[`30cf82a`](https://togithub.com/withastro/astro/commit/30cf82ac3e970a6a3c0f07db1340dd7152d1c35d)
Thanks [@&#8203;robertvanhoesel](https://togithub.com/robertvanhoesel)!
- Prevents inputs with a name attribute of action or method to break
ViewTransitions' form submission

- [#&#8203;10833](https://togithub.com/withastro/astro/pull/10833)
[`8d5f3e8`](https://togithub.com/withastro/astro/commit/8d5f3e8656027023f9fda51c66b0213ffe16d3a5)
Thanks [@&#8203;renovate](https://togithub.com/apps/renovate)! - Updates
`esbuild` dependency to v0.20. This should not affect projects in most
cases.

- [#&#8203;10801](https://togithub.com/withastro/astro/pull/10801)
[`204b782`](https://togithub.com/withastro/astro/commit/204b7820e6de22d97fa2a7b988180c42155c8387)
Thanks [@&#8203;rishi-raj-jain](https://togithub.com/rishi-raj-jain)! -
Fixes an issue where images in MD required a relative specifier (e.g.
`./`)

Now, you can use the standard `![](relative/img.png)` syntax in MD files
for images colocated in the same folder: no relative specifier required!

There is no need to update your project; your existing images will still
continue to work. However, you may wish to remove any relative
specifiers from these MD images as they are no longer necessary:

    ```diff
    - ![A cute dog](./dog.jpg)
    + ![A cute dog](dog.jpg)
    <!-- This dog lives in the same folder as my article! -->
    ```

- [#&#8203;10841](https://togithub.com/withastro/astro/pull/10841)
[`a2df344`](https://togithub.com/withastro/astro/commit/a2df344bff15647c2bfb3f49e3f7b66aa069d6f4)
Thanks [@&#8203;martrapp](https://togithub.com/martrapp)! - Due to
regression on mobile WebKit browsers, reverts a change made for
JavaScript animations during view transitions.

</details>

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