fix(deps): update dependency marked to v15

Author: renovate[bot]

package.json

@@ -39,7 +39,7 @@
     "leaflet": "^1.9.4",
     "lucide-react": "^0.469.0",
     "markdown-to-jsx": "^7.4.0",
-    "marked": "5.1.2",
+    "marked": "15.0.12",
     "motion": "^12.11.0",
     "next": "^14.2.5",
     "next-image-export-optimizer": "^1.12.3",