- Remove references to deprecated sbt-sonatype plugin
- Update credentials setup to use new Sonatype Central format
- Replace sonatypeBundleRelease with sonaRelease command
- Add environment variable alternative for credentials
- Update host from oss.sonatype.org to central.sonatype.com

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Co-Authored-By: Claude <noreply@anthropic.com>

bot added the doc label

xerial deleted the update-readme-publishing-instructions branch