Background

Today the integration test are executed only under Linux, using the integration-test-docker-environment.
However, it be good to run the tests also under Windows and MacOsX.
For this purpose we need an external database instance available.

Acceptance criteria

1. Use https://github.com/exasol/terraform-aws-exasol-test-setup/ in a github actions to start the cluster and execute integration tests there.
2. The github actions must only run when requested (not on every push).