ES|QL: Fix release yamlRestTest (elastic#133820)

Author: leontyevdv

x-pack/plugin/src/yamlRestTest/resources/rest-api-spec/test/esql/60_usage.yml

@@ -229,7 +229,7 @@ setup:
   - gt: {esql.functions.to_long: $functions_to_long}
   - match: {esql.functions.coalesce: $functions_coalesce}
   - gt: {esql.functions.categorize: $functions_categorize}
-  - length: {esql.functions: 140} # check the "sister" test above for a likely update to the same esql.functions length check
+  - length: {esql.functions: 141} # check the "sister" test above for a likely update to the same esql.functions length check
 
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 took: