fix(deps): update dependency astro to v4.15.8 (#592)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

bun.lockb

@@ -24,7 +24,7 @@
 		"prepare": "husky && bun link"
 	},
 	"dependencies": {
-		"astro": "4.15.7",
+		"astro": "4.15.8",
 		"sharp": "0.33.5",
 		"svgo": "3.3.2"
 	},