bump Next to 15.5.6 in e2e tests (#975)

Author: vicb

pnpm-lock.yaml

@@ -45,7 +45,7 @@ catalogs:
     "@types/react-dom": 19.0.0
     "@types/react": 19.0.0
     autoprefixer: 10.4.15
-    next: ~15.4.5
+    next: ~15.5.6
     postcss: 8.4.27
     react-dom: 19.0.0
     react: 19.0.0