[config] Don't publish test and example modules to Maven Central

[manusa]

Description

From quarkusio/quarkus#44810

Currently, some of the internal modules are being published to Maven Central.

Test, example, and parent modules should not be published to Maven Central.

The following snippet shows how this can be configured:

kubernetes-client/kubernetes-model-generator/openapi/maven-plugin/pom.xml

Lines 40 to 42 in 3b3ee5c

	<properties>
	<maven.deploy.skip>true</maven.deploy.skip><!-- Keep module private -->
	</properties>

[gsmet]

Be careful, depending on how your publishing is configured, you sometimes need the last module to be deployed or nothing will be deployed. It's typically the case if you deploy at the end of the build.

What we recommend is to enable these modules only when you don't release.

For instance, with something like: https://github.com/quarkiverse/quarkus-github-app/blob/main/pom.xml#L180-L191

[manusa]

Thanks @gsmet
We'll definitely check what happens with the snapshot publishing before dealing with a final release once the issue is tackled.