fix(ci): resolve upload-artifact path via github.workspace context

[williaby]

Summary

In a reusable (workflow_call) workflow the runner process CWD is not guaranteed to be $GITHUB_WORKSPACE. The relative glob sbom-*.json therefore resolves to the wrong directory, confirmed failing in run 24256519203 even with the file present at $GITHUB_WORKSPACE/sbom-runtime.json.

Using ${{ github.workspace }}/sbom-*.json gives upload-artifact@v4 the workspace root as a context expression evaluated before the glob resolver runs, so the path is correct regardless of process CWD.

Diagnosis path

PR	Upload path	Result
#26	${{ github.workspace }}/sbom-*.json with v4.6.2	failed — v4.6.2 glob bug
#27	${{ github.workspace }}/sbom-*.json with v4.5.0	merged without test run
#28	sbom-*.json (relative) with v4.5.0	failed — CWD ≠ GITHUB_WORKSPACE
#29	${{ github.workspace }}/sbom-*.json with v4.5.0	to test

The combination of v4.5.0 + ${{ github.workspace }} context path has not yet had a clean test run.

Testing

• Trigger the SBOM workflow and confirm upload succeeds
• Confirm scan-runtime and license-compliance jobs receive the artifact

🤖 Generated with Claude Code

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: c71a2e8a-3880-4656-b669-d5c337b1f2f5

📥 Commits

Reviewing files that changed from the base of the PR and between 85da151 and 15dbde1.

📒 Files selected for processing (1)

• .github/workflows/python-sbom.yml

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/sbom-upload-workspace-context

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