Update dependency next to v15.2.3 [SECURITY] (#896)

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

Author: renovate[bot]

package.json

@@ -30,7 +30,7 @@
     "@vercel/analytics": "1.4.1",
     "hosted-git-info": "8.0.2",
     "lru-cache": "10.4.3",
-    "next": "15.2.1",
+    "next": "15.2.3",
     "react": "19.0.0",
     "react-dom": "19.0.0",
     "styled-components": "6.1.15",