OFFI-56: Adding Elasticsearch setup workflow

[porgabi]

OFFI-56

[Piedone]

There's a container build step running before anything else, even if Elasticsearch setup is not enabled:

See https://github.com/Lombiq/Open-Source-Orchard-Core-Extensions/actions/runs/10082467596/job/27876788040.

Can this be avoided?

[porgabi]

There's a container build step running before anything else, even if Elasticsearch setup is not enabled:

See https://github.com/Lombiq/Open-Source-Orchard-Core-Extensions/actions/runs/10082467596/job/27876788040.

Can this be avoided?

I can't quite tell why referencing the third-party action without actually running it does this.

[Piedone]

Then you can look up if this is normal behavior for such an action using Docker and/or ask under the project.