fix(op-preimage): disable setnonblock in windows

[serpixel]

Description

Windows requires a file handle in order to call Setnonblock. This is a bit redundant in our case given that the implementation does nothing, therefore we just skip the method on windows to avoid the failing build.

  ⨯ release failed after 2m44s                      
    error=
    │ build failed: exit status 1: # github.com/ethereum-optimism/optimism/op-preimage
    │ ../op-preimage/filechan.go:93:26: cannot use fd (variable of type int) as syscall.Handle value in argument to syscall.SetNonblock
    target=windows_amd64_v1

Tests

Additional context

Metadata

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.49%. Comparing base (722b12f) to head (0689365).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #18688      +/-   ##
===========================================
+ Coverage    66.60%   73.49%   +6.89%     
===========================================
  Files          189      189              
  Lines        11244    11244              
===========================================
+ Hits          7489     8264     +775     
+ Misses        3611     2836     -775     
  Partials       144      144              

Flag	Coverage Δ
cannon-go-tests-64	66.58% <ø> (ø)
contracts-bedrock-tests	77.36% <ø> (+10.74%)	⬆️

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see 34 files with indirect coverage changes

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