[Rust] Bump recfarm version to 0.2.1

[massquantity]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 52.27%. Comparing base (e0dd499) to head (78eae2a).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #528   +/-   ##
=======================================
  Coverage   52.27%   52.27%           
=======================================
  Files         129      129           
  Lines        8448     8448           
=======================================
  Hits         4416     4416           
  Misses       4032     4032           

Flag	Coverage Δ
CI	52.27% <ø> (ø)

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