AWS Timestream (for LiveAnalytics) EOL

[coderbyheart]

The current Timestream feature used in this project is discontinued: https://docs.aws.amazon.com/timestream/latest/developerguide/AmazonTimestreamForLiveAnalytics-availability-change.html

It's usage in the DemoStack needs to be refactored to an alternative, e.g. Timestream for InfluxDB.