fix(deps): update dependency astro to v4.16.13 (#152)

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

Author: renovate[bot]

bun.lockb

@@ -19,7 +19,7 @@
   },
   "dependencies": {
     "@astrojs/starlight": "0.29.0",
-    "astro": "4.16.12",
+    "astro": "4.16.13",
     "sharp": "0.33.5"
   },
   "devDependencies": {