Bump astro from 6.1.6 to 6.1.9 (#67)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -15,7 +15,7 @@
     "@lorenzo_lewis/starlight-utils": "^0.3.2",
     "@nanostores/vue": "^1.1.0",
     "@tanstack/vue-form": "^1.29.0",
-    "astro": "^6.1.6",
+    "astro": "^6.1.9",
     "js-yaml": "^4.1.1",
     "nanostores": "^1.3.0",
     "sharp": "^0.34.2",