Migration from OSSRH to new Maven Central service

[hohwille]

As you may have heard, OSSRH is reaching end of life on June 30, 2025. OSSRH users need to migrate their namespaces to the Central Portal as soon as possible. Instructions for self migration are located here:
https://central.sonatype.org/faq/what-is-different-between-central-portal-and-legacy-ossrh/

So we have to react or otherwise we cannot deploy releases anymore.

We also need to make changes to our pom.xml to change to the new plugin after the namespace is migrated:
https://central.sonatype.org/publish/publish-portal-maven/

In this context we might even consider moving from com.devonfw to io.github.xxx where xxx would ideally be IDEasy. Unfortunately someone already took this "namespace" and is not using it.

[hohwille]

see m-m-m/mmm#2

[hohwille]

As I can see someone already migrated com.devonfw to maven central portal or this happened automatically due to the overdue deadline and the deactivation of OSSRH legacy.
So we immediately need to update our POM as explained in https://github.com/m-m-m/mmm/wiki/maven-central-portal
Only then we can continue to deploy SNAPSHOTs and releases.