fix(deps): update dependency astro to v4.8.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
astro (source)	4.8.2 -> 4.8.3

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Release Notes

withastro/astro (astro)

### [`v4.8.3`](https://togithub.com/withastro/astro/blob/HEAD/packages/astro/CHANGELOG.md#483) [Compare Source](https://togithub.com/withastro/astro/compare/astro@4.8.2...astro@4.8.3) ##### Patch Changes - [#​11006](https://togithub.com/withastro/astro/pull/11006) [`7418bb0`](https://togithub.com/withastro/astro/commit/7418bb054cf74a131877497b4b70cf0980de4c6b) Thanks [@​bholmesdev](https://togithub.com/bholmesdev)! - Fix `locals` access from action handlers

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