Update 51N31 to not use <<item>>

Hunterness · Hunterness · commit b007052a9592 · 2025-05-20T12:12:32.000+02:00
diff --git a/modules/ROOT/pages/errors/gql-errors/51N31.adoc b/modules/ROOT/pages/errors/gql-errors/51N31.adoc
@@ -2,7 +2,7 @@
 
 == 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[]
