adding ignore_unmapped to GeoDistanceQuery (#2388)

Author: l-trotta

output/openapi/elasticsearch-serverless-openapi.json

@@ -76,6 +76,12 @@ export class GeoDistanceQuery
    * @server_default 'strict'
    */
   validation_method?: GeoValidationMethod
+  /**
+   * Set to `true` to ignore an unmapped field and not match any documents for this query.
+   * Set to `false` to throw an exception if the field is not mapped.
+   * @server_default false
+   */
+  ignore_unmapped?: boolean
 }
 
 export class GeoPolygonPoints {