Referencing the action starts an elastic container build step even if the action itself is skipped

The Elasticsearch action is conditionally called in a workflow, but even when it's not run, the container build step still runs. Here's an [example](https://github.com/Lombiq/Open-Source-Orchard-Core-Extensions/actions/runs/10082467596/job/27876788040#step:2:1) for such a build:

The Elasticsearch action is referenced in the action.yml file found in [this pull request](https://github.com/Lombiq/GitHub-Actions/pull/376/files), which is conditionally called in the build-and-test-orchard-core.yml file.

Is this normal behavior, or can it be prevented somehow? The container build step shouldn't run when the Elasticsearch setup step doesn't.