Update 22N69 and 22N71 to have more consistent wording when compared to the corresponding constraint errors

Author: Hunterness

modules/ROOT/pages/errors/gql-errors/22N69.adoc

@@ -1,7 +1,9 @@
+:page-role: changed-2025.06
+
 = 22N69
 
 == Status description
-error: data exception - index does not exist. The index specified by `{ <<idxDescrOrName>> }` does not exist.
+error: data exception - index does not exist. The index `{ <<idxDescrOrName>> }` does not exist.
 
 
 ifndef::backend-pdf[]

modules/ROOT/pages/errors/gql-errors/22N71.adoc

@@ -1,7 +1,9 @@
+:page-role: changed-2025.06
+
 = 22N71
 
 == Status description
-error: data exception - index with the same name already exists. An index with the same name already exists: `{ <<idx>> }`.
+error: data exception - duplicated index name. An index with the same name already exists: `{ <<idx>> }`.
 
 
 ifndef::backend-pdf[]