chore(deps): update dependency astro to v7.3.8

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
astro (source)	7.3.7 → 7.3.8

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Release Notes

withastro/astro (astro)

v7.3.8

Compare Source

Patch Changes

• #​18293 28e7410 Thanks @​astro-factory! - Fixes Astro.cache being undefined when a custom 404 or 500 page is rendered by the error handler, for example after a request to an API route with an HTTP method the route doesn't export

• #​18298 0e9e857 Thanks @​matthewp! - Fixes astro add removing existing allowBuilds approvals from pnpm-workspace.yaml with pnpm v11.0–v11.22

• #​18263 882dd98 Thanks @​florian-lefebvre! - Refactors internal bundling and code transforms to use Vite's Oxc-based transformWithOxc and Rolldown instead of esbuild. These packages no longer depend on esbuild directly.

• #​18290 31f13c3 Thanks @​astro-factory! - Fixes the glob() loader not reloading changed files in dev when the pattern starts with an extglob such as !(drafts)/**/*.md

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