Synchronize the status updates to be happening very close before the hour

[joro75]

At this moment the status from the Toyota servers is updated every 5 minutes. This is depending on when Domoticz and/or the plugin is started.
It would be better if the update of the toyota servers is done in such a way that it is done just before the next hour starts. In this way the information is updated in the correct hour, just before the new hour starts.

By slowly increasing or decreasing the interval of the updates, it should be possible to have the update in the last minute of the hour.