fix(deps): update dependency astro to v5

Author: renovate[bot]

package.json

@@ -14,7 +14,7 @@
 	},
 	"dependencies": {
 		"@astrojs/starlight": "0.29.2",
-		"astro": "4.16.17",
+		"astro": "5.0.3",
 		"sharp": "0.33.5"
 	},
 	"devDependencies": {