Bump astro from 6.4.2 to 6.4.8 in /docs (#1068)

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 6.4.2 to 6.4.8.
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/astro@6.4.8/packages/astro/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/astro@6.4.8/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 6.4.8
  dependency-type: direct:production
...

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docs/package-lock.json

@@ -16,7 +16,7 @@
         "@fontsource/ibm-plex-mono": "^5.2.7",
         "@fontsource/ibm-plex-sans": "^5.2.8",
         "@tailwindcss/vite": "^4.3.0",
-        "astro": "^6.4.2",
+        "astro": "^6.4.8",
         "sharp": "^0.34.5",
         "starlight-openapi": "^0.25.3",
         "svelte": "^5.56.0",
@@ -2848,9 +2848,9 @@
       }
     },
     "node_modules/astro": {
-      "version": "6.4.2",
-      "resolved": "https://registry.npmjs.org/astro/-/astro-6.4.2.tgz",
-      "integrity": "sha512-8H89CH2dKL5SCU99OCqdU9BGjmPkSJqaPurywj5XMo7eMFGUFD3vsNhdEKnEh4mK4LgGje3/QDTTSIIGst0G0Q==",
+      "version": "6.4.8",
+      "resolved": "https://registry.npmjs.org/astro/-/astro-6.4.8.tgz",
+      "integrity": "sha512-KK5lX90uU9EeVaTjINyj3sy9/NFXVa59aowaqbWBDDKLXZh4rr7GwIaCFYVetE22MJtsCNFerQXn0vlCLmpP/Q==",
       "license": "MIT",
       "dependencies": {
         "@astrojs/compiler": "^4.0.0",
@@ -2867,7 +2867,7 @@
         "clsx": "^2.1.1",
         "common-ancestor-path": "^2.0.0",
         "cookie": "^1.1.1",
-        "devalue": "^5.6.3",
+        "devalue": "^5.8.1",
         "diff": "^8.0.3",
         "dset": "^3.1.4",
         "es-module-lexer": "^2.0.0",