Surface Sonatype deployment IDs in CI Job Summary and workflow outputs

[Copilot]

Sonatype deployment IDs were only visible inside the Publish log, forcing manual log search to retrieve critical release metadata. This change promotes those IDs to first-class build outputs directly on the GitHub Actions build page.

• Summary visibility on build page

  • Added a Summarize Sonatype Deployment IDs step in cibuild.yml (post-Publish) to read dist/bundles_DEPLOYMENTID.txt and render a compact Deployment IDs table in GITHUB_STEP_SUMMARY.
  • Handles missing/empty file cases with explicit summary messages instead of silent failure.

• Machine-readable workflow outputs

  • Exported deployment IDs from the summary step as:
    • multiline deployment_ids
    • comma-separated deployment_ids_csv
  • Promoted these to job outputs:
    • sonatype_deployment_ids
    • sonatype_deployment_ids_csv
  • Enables downstream jobs/automation to consume deployment IDs without parsing logs.

• Artifact traceability

  • Added optional upload of dist/bundles_DEPLOYMENTID.txt as a dedicated artifact (*-sonatype-deployment-ids) for audit/history access.

Example of the new summary output shape:

### Deployment IDs

| # | Deployment ID |
|---|---|
| 1 | `d8893caf-e811-4879-a670-83083133d1f9` |
| 2 | `3fd2e72d-f461-48cc-ade8-ef5e7900aaf5` |