fix(ci): correct commit hashes in published autobahn reports

[mccutchen]

Why is it that the most conveniently available commit hash in a github actions workflow never points at what you expect it to?

[github-actions]

🔥 Run benchmarks comparing 7cf4915 against main:

gh workflow run bench.yaml -f pr_number=46

Note: this comment will update with each new commit.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.37%. Comparing base (5d28065) to head (7cf4915).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #46   +/-   ##
=======================================
  Coverage   92.37%   92.37%           
=======================================
  Files           2        2           
  Lines         459      459           
=======================================
  Hits          424      424           
  Misses         28       28           
  Partials        7        7           

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