Use os.devnull instead of Empty

[DanielNoord]

Taken from #2586

mypyc doesn't deal with Empty very well. Let's just use devnull as sink.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.39%. Comparing base (68356ea) to head (705e1e3).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2593      +/-   ##
==========================================
- Coverage   99.39%   99.39%   -0.01%     
==========================================
  Files          41       41              
  Lines        3147     3145       -2     
  Branches      680      680              
==========================================
- Hits         3128     3126       -2     
  Misses         11       11              
  Partials        8        8              

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