Update dependency next to v15.5.4 (#230)

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

Author: renovate[bot]

package-lock.json

@@ -16,7 +16,7 @@
         "glob": "^10.4.2",
         "markdown-to-jsx": "^7.7.3",
         "marked": "^14.1.2",
-        "next": "15.5.3",
+        "next": "15.5.4",
         "react": "^19.1.0",
         "react-dom": "^19.1.0",
         "swiper": "^11.1.4",