Fix React Server Components CVE vulnerabilities (#45)

Author: rezwana-karim

package-lock.json

@@ -21,7 +21,7 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "gray-matter": "^4.0.3",
-    "next": "15.5.4",
+    "next": "15.5.9",
     "react": "19.1.0",
     "react-dom": "19.1.0",
     "tailwind-merge": "^3.3.1"