Attempt to fix CI by pinning test env to openfe-benchmarks v0.1.0

[dotsdl]

Closes #483.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.72%. Comparing base (42ebace) to head (6720b21).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #484   +/-   ##
=======================================
  Coverage   78.72%   78.72%           
=======================================
  Files          29       29           
  Lines        4799     4799           
=======================================
  Hits         3778     3778           
  Misses       1021     1021           

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