Update openapi.json (spiceai#5406)

* Update openapi.json

* trigger

---------

Co-authored-by: Spice Schema Bot <schema-bot@spice.ai>
Co-authored-by: Evgenii Khramkov <evgenii@spice.ai>

Author: 3 people

.schema/openapi.json

@@ -953,8 +953,8 @@
         "tags": [
           "SQL"
         ],
-        "summary": "Text to SQL",
-        "description": "Generate and optionally execute an NSQL query.\n\nThis endpoint generates a SQL query using a natural language query (NSQL) and optionally executes it.\nThe SQL query is generated by the specified model and executed if the `Accept` header is not set to `application/sql`.",
+        "summary": "Text-to-SQL (NSQL)",
+        "description": "Generate and optionally execute a natural-language text-to-SQL (NSQL) query.\n\nThis endpoint generates a SQL query using a natural language query (NSQL) and optionally executes it.\nThe SQL query is generated by the specified model and executed if the `Accept` header is not set to `application/sql`.",
         "operationId": "post_nsql",
         "parameters": [
           {