[fix]: address compiler errors raised when building with Alpine/musl

[robomics]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 77.55%. Comparing base (a7e95bd) to head (68d4cdb).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
.../filestream/include/hictk/impl/filestream_impl.hpp	72.72%	3 Missing ⚠️

❌ Your patch status has failed because the patch coverage (75.00%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #430      +/-   ##
==========================================
- Coverage   77.56%   77.55%   -0.01%     
==========================================
  Files         181      181              
  Lines       23630    23640      +10     
  Branches     2612     2612              
==========================================
+ Hits        18328    18335       +7     
- Misses       4152     4153       +1     
- Partials     1150     1152       +2     

Flag	Coverage Δ
[tests	fuzzer](https://app.codecov.io/gh/paulsengroup/hictk/pull/430/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=paulsengroup)	28.53% <0.00%> (-0.04%)
[tests	integration](https://app.codecov.io/gh/paulsengroup/hictk/pull/430/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=paulsengroup)	68.62% <8.33%> (-0.02%)
[tests	unittests](https://app.codecov.io/gh/paulsengroup/hictk/pull/430/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=paulsengroup)	76.61% <75.00%> (-0.02%)

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