fix(deps): update dependency astro to ^5.15.3 (#1944)

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

Author: renovate[bot]

package.json

@@ -32,7 +32,7 @@
 		"@preact/signals-core": "^1.12.1",
 		"@tailwindcss/container-queries": "^0.1.1",
 		"@types/node": "^24.9.2",
-		"astro": "^5.15.2",
+		"astro": "^5.15.3",
 		"astro-embed": "^0.9.1",
 		"astro-expressive-code": "^0.41.2",
 		"astro-icon": "^1.1.5",