fix: little-endian conversion truncate

[Officeyutong]

Closes #17
Add truncation for little-endian conversion

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.73%. Comparing base (d95c50e) to head (953e01d).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #19      +/-   ##
==========================================
+ Coverage   81.00%   81.73%   +0.73%     
==========================================
  Files           5        5              
  Lines         979      980       +1     
  Branches      102      104       +2     
==========================================
+ Hits          793      801       +8     
+ Misses        186      179       -7     

Flag	Coverage Δ
bpf_conformance	67.75% <100.00%> (+0.74%)	⬆️
unittests	55.81% <43.75%> (-0.37%)	⬇️

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[Officeyutong]

They are passed now:

@yunwei37 Do we need to get Codecov CI passed now?

[yunwei37]

You can change the bpf conformance checking test in ci (There will be bpf conformance running 2 times, one for checking and one for publishing the result)

Enable the check For bpf cobformance can affect the coverage