Merge pull request 'fix(deps): update dependency astro to v6' (!21) from renovate/major-astro-monorepo into master

Reviewed-on: #21

package.json

@@ -24,7 +24,7 @@
     "@astrojs/rss": "^4.0.12",
     "@astrojs/sitemap": "^3.4.1",
     "@resvg/resvg-js": "^2.6.2",
-    "astro": "^5.9.0",
+    "astro": "^6.0.0",
     "autoprefixer": "^10.4.21",
     "cssnano": "^7.0.7",
     "cssnano-preset-advanced": "^7.0.7",