fix mis spelling

EVCB_OCPP.WSServer/Jobs/HealthCheckTriggerJob.cs

@@ -35,7 +35,7 @@ public class HealthCheckTriggerJob : IJob
 
         Dictionary<string, WsClientData> _copyClientDic = protalServer.GetClientDic();
 
-        Dictionary<string, int> chargeBoxHeartBeatIngerval = await GetChargeBoxIdelSeconds(_copyClientDic?.Keys?.ToList());
+        Dictionary<string, int> chargeBoxHeartBeatIngerval = await GetChargeBoxIdleSeconds(_copyClientDic?.Keys?.ToList());
 
         var removeClients = _copyClientDic
             .Where(x => x.Value.LastActiveTime < DateTime.UtcNow.AddSeconds(-1 * chargeBoxHeartBeatIngerval[x.Key]))
@@ -50,7 +50,7 @@ public class HealthCheckTriggerJob : IJob
         return ;
     }
 
-    private async Task<Dictionary<string, int>> GetChargeBoxIdelSeconds(List<string> chageboxList)
+    private async Task<Dictionary<string, int>> GetChargeBoxIdleSeconds(List<string> chageboxList)
     {
         if (chageboxList is null)
         {