ci: simplify publish workflow and update to semantic-pr-release-drafter@v0.4.0

[Aaron ("AJ") Steers (aaronsteers)]

Summary

This PR makes two major changes to the release automation:

1. Updates release-drafter to v0.4.0 with attach-files feature:

• Uses aaronsteers/semantic-pr-release-drafter@v0.4.0 which handles asset attachment internally
• Calls the action only ONCE after building (not twice)
• Removed separate delete-assets and upload-assets steps
• Simplified build step to just uv build (no version bypass needed)

2. Drastically simplifies publish.yml:

• Removed the build job entirely (building now happens in release-drafter)
• Removed the download_release_assets job
• Removed workflow_dispatch trigger
• Now uses robinraju/release-downloader@v1.12 to download pre-built assets from the release
• Workflow reduced from ~200 lines to ~35 lines

The new pattern separates concerns: release-drafter builds and attaches assets to draft releases, while the publish workflow only downloads and publishes to PyPI when a release is published.

Updates since last revision

• Simplified release-drafter to call action only once after building (matching awesome-python-template pattern)
• Removed unused step ID from release-drafter
• Simplified download to single step with fileName: "*" pattern
• Restored OIDC authentication comment

Review & Testing Checklist for Human

• Verify uv build correctly determines version from git without explicit bypass (relies on uv-dynamic-versioning)
• Verify release-drafter correctly builds and attaches wheel/sdist to draft releases when PRs are merged to main
• Confirm the robinraju/release-downloader action correctly downloads assets when a release is published
• Test end-to-end: merge a PR → verify draft release has assets → publish release → verify PyPI upload succeeds
• Consider if removing workflow_dispatch is acceptable (no manual prerelease publishing capability)

Notes

This follows the simplified pattern from awesome-python-template and airbyte-ops-mcp which were merged and tested successfully. The publish workflow is now purely focused on downloading pre-built assets and publishing to PyPI.

Requested by: Aaron ("AJ") Steers (@aaronsteers)
Link to Devin run: https://app.devin.ai/sessions/dbf7f70cc98d47b89f304541608046fa

[devin-ai-integration]

Original prompt from AJ Steers

@Devin - Update all repos that use release-drafter to use my new aaronsteers/semantic-pr-release-drafter@0.2.1

Delete existing release drafter config files and just use all default config from that action (no overrides)
Thread URL: https://airbytehq-team.slack.com/archives/D089P0UPVT4/p1768735267982409

[devin-ai-integration]

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[Copilot]

Pull request overview

This PR simplifies the release automation workflow by updating to semantic-pr-release-drafter@v0.4.0 and restructuring the publish process. The changes separate concerns: release-drafter now builds and attaches assets to draft releases, while publish.yml only downloads pre-built assets and publishes to PyPI.

Changes:

• Updated release-drafter to v0.4.0 and integrated its built-in asset attachment feature
• Removed build job and workflow_dispatch trigger from publish.yml
• Replaced manual asset download with robinraju/release-downloader action

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
.github/workflows/release-drafter.yml	Updates to v0.4.0 and uses new attach-files feature to handle asset management
.github/workflows/publish.yml	Simplified to only download pre-built assets and publish to PyPI

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