Do not discover properties resource in the classpath to avoid missing resources registration in native mode

[radcortez]

Disable automatic discovery of configuration resources in native mode.

While it has always been enabled, it didn't have any effect because we never registered the resources in the native image. The configuration still worked, because we recorded the configuration during build time.

I did try to disable it as well for JVM mode, but it is a bit more tricky:

• Our testing API can add additional classpath resources after we build Quarkus, which wouldn't be caught with this.
• Debugging would be harder, because it would lose the the origin source from where the configuration is coming from.
• Flattening has a corner case issue described in Register default configuration smallrye configuration files as resources #44652 (comment). This was never really an issue, but there is a test in the TCK that fails because of this.

Ideally, both JVM and native mode should be the same, but at the moment they're not. While this doesn't solve that particular issue, it should at least fix the missing registration warnings / errors without changing the current behaviour.

• Fixes Enhance SmallRyeConfig handling  #41994

Alternate proposal to #42140.

[geoand]

CI failures seem related

[radcortez]

CI failures seem related

Yes

[radcortez]

I was expecting more actually :)

[quarkus-bot]

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[github-actions]

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[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit 8cbb860.

✅ 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.