Update 51N31 to not use <<item>> (#328)

Updated in neo-technology/neo4j#31151

Author: Hunterness

modules/ROOT/pages/errors/gql-errors/51N31.adoc

@@ -1,8 +1,10 @@
+:page-role: changed-2025.06
+
 = 51N31
 
 == Status description
 
-error: system configuration or operation exception - not supported. `{ <<item>> }` is not supported in `{ <<context>> }`.
+error: system configuration or operation exception - not supported. `{ <<feat>> }` is not supported in `{ <<context>> }`.
 
 
 ifndef::backend-pdf[]