fix: upgrade astro from 5.1.8 to 5.1.9 (#522)

Snyk has created this PR to upgrade astro from 5.1.8 to 5.1.9.

See this package in yarn:
astro

See this project in Snyk:
https://app.snyk.io/org/data-team-dt/project/ee034aa7-b6ce-4de5-8d0b-dfccab2c739c?utm_source=github&utm_medium=referral&page=upgrade-pr

Co-authored-by: snyk-bot <snyk-bot@snyk.io>

Author: Contentsquare-Security-Bot

docs/package.json

@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@astrojs/starlight": "^0.31.0",
-    "astro": "^5.1.8",
+    "astro": "^5.1.9",
     "sharp": "^0.33.5"
   },
   "devDependencies": {