fix(deps): update astro monorepo

Author: renovate[bot]

package.json

@@ -14,8 +14,8 @@
     "format": "biome format --write ."
   },
   "dependencies": {
-    "@astrojs/mdx": "^4.3.13",
-    "@astrojs/react": "^4.4.2",
+    "@astrojs/mdx": "^5.0.0",
+    "@astrojs/react": "^5.0.0",
     "@heroicons/react": "^2.2.0",
     "@radix-ui/react-checkbox": "^1.3.2",
     "@radix-ui/react-dialog": "^1.1.14",
@@ -26,7 +26,7 @@
     "@radix-ui/react-slot": "^1.2.3",
     "@radix-ui/react-tabs": "^1.1.12",
     "@tailwindcss/vite": "^4.1.8",
-    "astro": "5.17.1",
+    "astro": "6.1.0",
     "astro-breadcrumbs": "^3.3.1",
     "astro-icon": "^1.1.5",
     "class-variance-authority": "^0.7.1",