uberf-8512: fix acc memory leak (#7002)

Signed-off-by: Alexey Zinoviev <[email protected]>

server/account/src/collections/mongo.ts

@@ -107,7 +107,7 @@ export class MongoDbCollection<T extends Record<string, any>> implements DbColle
       cursor.limit(limit)
     }
 
-    return await this.collection.find<T>(query as Filter<T>).toArray()
+    return await cursor.toArray()
   }
 
   async findOne (query: Query<T>): Promise<T | null> {