[Backport 8.14] Fix GeoIP stats API response (#2820)

(cherry picked from commit 6697817)

Co-authored-by: Quentin Pradet <quentin.pradet@elastic.co>

Author: github-actions[bot]

output/openapi/elasticsearch-openapi.json

@@ -84845,21 +84845,26 @@
           "total_download_time": {
             "$ref": "#/components/schemas/_types:DurationValueUnitMillis"
           },
-          "database_count": {
+          "databases_count": {
             "description": "Current number of databases available for use.",
             "type": "number"
           },
           "skipped_updates": {
             "description": "Total number of database updates skipped.",
             "type": "number"
+          },
+          "expired_databases": {
+            "description": "Total number of databases not updated after 30 days",
+            "type": "number"
           }
         },
         "required": [
           "successful_downloads",
           "failed_downloads",
           "total_download_time",
-          "database_count",
-          "skipped_updates"
+          "databases_count",
+          "skipped_updates",
+          "expired_databases"
         ]
       },
       "ingest.geo_ip_stats:GeoIpNodeDatabases": {

output/schema/schema.json

@@ -29,9 +29,11 @@ export class GeoIpDownloadStatistics {
   /** Total milliseconds spent downloading databases. */
   total_download_time: DurationValue<UnitMillis>
   /** Current number of databases available for use. */
-  database_count: integer
+  databases_count: integer
   /** Total number of database updates skipped. */
   skipped_updates: integer
+  /** Total number of databases not updated after 30 days */
+  expired_databases: integer
 }
 
 /** Downloaded databases for the node. The field key is the node ID. */