Bump actions/download-artifact from 4 to 6

[dependabot]

Bumps actions/download-artifact from 4 to 6.

Release notes

Sourced from actions/download-artifact's releases.

v6.0.0

What's Changed

BREAKING CHANGE: this update supports Node v24.x. This is not a breaking change per-se but we're treating it as such.

• Update README for download-artifact v5 changes by @​yacaovsnc in actions/download-artifact#417
• Update README with artifact extraction details by @​yacaovsnc in actions/download-artifact#424
• Readme: spell out the first use of GHES by @​danwkennedy in actions/download-artifact#431
• Bump @actions/artifact to v4.0.0
• Prepare v6.0.0 by @​danwkennedy in actions/download-artifact#438

New Contributors

• @​danwkennedy made their first contribution in actions/download-artifact#431

Full Changelog: actions/download-artifact@v5...v6.0.0

v5.0.0

What's Changed

• Update README.md by @​nebuk89 in actions/download-artifact#407
• BREAKING fix: inconsistent path behavior for single artifact downloads by ID by @​GrantBirki in actions/download-artifact#416

v5.0.0

🚨 Breaking Change

This release fixes an inconsistency in path behavior for single artifact downloads by ID. If you're downloading single artifacts by ID, the output path may change.

What Changed

Previously, single artifact downloads behaved differently depending on how you specified the artifact:

• By name: name: my-artifact → extracted to path/ (direct)
• By ID: artifact-ids: 12345 → extracted to path/my-artifact/ (nested)

Now both methods are consistent:

• By name: name: my-artifact → extracted to path/ (unchanged)
• By ID: artifact-ids: 12345 → extracted to path/ (fixed - now direct)

Migration Guide

✅ No Action Needed If:

• You download artifacts by name
• You download multiple artifacts by ID
• You already use merge-multiple: true as a workaround

⚠️ Action Required If:

You download single artifacts by ID and your workflows expect the nested directory structure.

... (truncated)

Commits

• 018cc2c Merge pull request #438 from actions/danwkennedy/prepare-6.0.0
• 815651c Revert "Remove github.dep.yml"
• bb3a066 Remove github.dep.yml
• fa1ce46 Prepare v6.0.0
• 4a24838 Merge pull request #431 from danwkennedy/patch-1
• 5e3251c Readme: spell out the first use of GHES
• abefc31 Merge pull request #424 from actions/yacaovsnc/update_readme
• ac43a60 Update README with artifact extraction details
• de96f46 Merge pull request #417 from actions/yacaovsnc/update_readme
• 7993cb4 Remove migration guide for artifact download changes
• Additional commits viewable in compare view

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