OpenTelemetry - Include span name in MDC context

[gsmet]

This can be very useful in the logs, especially since we push the scheduler jobs' name into the span name.

Fixes #39703

[quarkus-bot]

/cc @brunobat (opentelemetry), @radcortez (opentelemetry)

[brunobat]

To be honest, the amount of storage data that this will cause doesn't justify the benefits... This info can be found in the trace itself and the tracing data in the logs was always meant to be used only for correlation.

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit 88a8c92.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

You can consult the Develocity build scans.

[gsmet]

@brunobat you closed it and then reopened it. Is it by mistake? I'm perfectly fine to close it if you think it has no value but then let's also close the issue as Unplanned.

[brunobat]

Yes, it was a mistake. I thought it was an issue. I don't like to close PRs from other folks.
... And yes, I don't think we want the functionality.

[gsmet]

OK, let's close it then.