Use repository-name Maven Central deployment names

[fabian-barney]

Problem

Native Maven Central deployments currently rely on the Central plugin default deployment title. The deployment page
should make each entry clear by showing the Maven group, GitHub repository name, and resolved release version.

Intended outcome

• Use only central-publishing-maven-plugin first-class deploymentName support.
• Configure the visible deployment name as <resolved Maven groupId>:utils-java:<resolved release version>.
• Do not add unsupported dynamic naming, post-publish renames, OSSRH API workarounds, or publishing migrations.

Validation

• Verify effective Maven config resolves to media.barney:utils-java:<version>.
• Run the normal PR CI.