Add eu-central-1 as an additional value in "Connection details"/ Default Region and publish to https://grafana.com/grafana/plugins/grafana-timestream-datasource/

[asvand]

Hi team,

please add eu-central-1 as an additional value in "Connection details"/ Default Region. Please also publish to https://grafana.com/grafana/plugins/grafana-timestream-datasource/. It's urgent. Thanks!

Andrei

[asvand]

Duplicate to https://github.com/grafana/timestream-datasource/pull/85, so closing it