fix: ci: use properly globed path for buildpulse

[galargh]

Related Issues

Proposed Changes

The artifacts are extracted into subdirectories. This change ensures buildpulse action can find them.

Additional Info

Checklist

Before you mark the PR ready for review, please make sure that:

• Commits have a clear commit message.
• PR title is in the form of of <PR type>: <area>: <change being made>
  • example: fix: mempool: Introduce a cache for valid signatures
  • PR type: fix, feat, build, chore, ci, docs, perf, refactor, revert, style, test
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• New features have usage guidelines and / or documentation updates in
  • Lotus Documentation
  • Discussion Tutorials
• Tests exist for new functionality or change in behavior
• CI is green

[galargh]

The results should be showing up in BuildPulse now - https://github.com/filecoin-project/lotus/actions/runs/10079238397/job/27866101441