Bump next from 15.5.3 to 15.5.4 in /e2e/browser/test-app (#2742)

Author: dependabot[bot]

e2e/browser/test-app/package-lock.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "@inrupt/solid-client": "file:../../../",
     "@inrupt/solid-client-authn-browser": "^3.1.0",
-    "next": "^15.5.3",
+    "next": "^15.5.4",
     "react": "^19.2.0"
   },
   "devDependencies": {