fix(deps): update astro monorepo to v6.4.6

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This PR contains the following updates:

Package	Change	Age	Confidence
astro (source)	6.4.5 → 6.4.6

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Release Notes

withastro/astro (astro)

v6.4.6

Compare Source

Patch Changes

• #​16765 b10e86e Thanks @​fkatsuhiro! - Fixes an issue where renaming an image file while the dev server is running triggers a build error. Now Astro correctly hot-reloads the image without crashing.

• #​17026 add3df1 Thanks @​matthewp! - Hardens addAttribute to drop attribute names containing characters that are invalid per the HTML spec (", ', >, /, =, whitespace)

• #​17033 ffda27b Thanks @​matthewp! - Validates the request origin against allowedDomains before fetching prerendered error pages. When allowedDomains is configured and the Host header matches, the original origin is used. Otherwise, the fetch falls back to localhost.

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