fix(deps): update astro monorepo to v6.4.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
astro (source)	6.4.2 → 6.4.3

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Release Notes

withastro/astro (astro)

v6.4.3

Compare Source

Patch Changes

• #​16900 17a0fbd Thanks @​ocavue! - Bumps devalue dependency to v5.8.1

• #​16016 0d85e1b Thanks @​felmonon! - Fix a false positive in the dev toolbar accessibility audit for anchors with text inside closed <details> elements.

• #​16911 79c6c46 Thanks @​astrobot-houston! - Fixes a bug where experimental.advancedRouting with astro/hono handlers threw TypeError: Cannot read properties of undefined (reading 'route') for unmatched routes instead of rendering the custom 404 page.

• #​16899 239c469 Thanks @​matthewp! - Fixes a false "does not call the middleware() handler" warning when using astro() in a custom src/app.ts and the first request is a redirect route.

• #​16887 493acdb Thanks @​astrobot-houston! - Fixes redirectToDefaultLocale not working after the Advanced Routing refactoring.

• #​16908 ef53ab9 Thanks @​florian-lefebvre! - Improves optimized fallbacks generation when using the Fonts API by using better metrics for bold variants

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