chore(deps): update astro monorepo

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@astrojs/react (source)	5.0.3 → 5.0.6
@astrojs/sitemap (source)	3.7.2 → 3.7.3

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Release Notes

withastro/astro (@​astrojs/react)

v5.0.6

Compare Source

Patch Changes

• Updated dependencies [f732f3c]:
  • @​astrojs/internal-helpers@​0.10.0

v5.0.5

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Patch Changes

• Updated dependencies [d365c97]:
  • @​astrojs/internal-helpers@​0.9.1

v5.0.4

Compare Source

Patch Changes

• Updated dependencies [99464ed, f3485c3]:
  • @​astrojs/internal-helpers@​0.9.0

withastro/astro (@​astrojs/sitemap)

v3.7.3

Compare Source

Patch Changes

• #​16837 783c4a6 Thanks @​jdevalk! - Improves <lastmod> accuracy in the sitemap index. Each <sitemap> entry in sitemap-index.xml is now stamped with the most recent lastmod of the URLs in the child sitemap it points to, instead of repeating a single global date on every entry. When a child sitemap has no per-URL lastmod, the entry falls back to the lastmod option as before. This gives search engines a per-file freshness signal, so they can tell which child sitemaps actually changed without refetching all of them.

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