Add required fields to HistoryCount object in schema

Updated the schema to include `bans`, `mutes`, `warnings`, and `kicks` as required properties in the `HistoryCount` object. This ensures proper validation and consistency across the API.

open_api/src/main/resources/schemas/bans/bans.yml

@@ -227,6 +227,11 @@ components:
         - uuid
     HistoryCount:
       type: object
+      required:
+        - bans
+        - mutes
+        - warnings
+        - kicks
       properties:
         bans:
           type: integer