upgrade nextjs (#1940)

Author: jeesunikim

package.json

@@ -45,7 +45,7 @@
     "immer": "^10.1.1",
     "lodash": "^4.17.21",
     "lossless-json": "^4.0.2",
-    "next": "15.5.9",
+    "next": "15.5.10",
     "papaparse": "^5.5.2",
     "react": "^19.2.2",
     "react-diff-viewer": "^3.1.1",