chore(security): update VEX statements from scheduled scan

[dannysauer-automation]

Summary

• Update VEX statements for all not-affected vulnerabilities found by the scheduled scan
• Cover all currently reported vulnerable packages for each CVE

CVEs Updated

• CVE-2026-54369: libacl1
• CVE-2026-54371: libattr1

---

This PR was automatically generated by the scheduled security scan.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (e250c9b) to head (35d8401).

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #233   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            9         9           
  Lines         1140      1140           
  Branches       134       134           
=========================================
  Hits          1140      1140           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

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[github-actions]

🐳 Docker image built and pushed: ghcr.io/dannysauer/stampbot:pr-460bf5a

[github-actions]

Superseded by #235, which now includes all of this PR's VEX statements. Closing as redundant.