ci: simplify build system

[maxmouchet]

• [pybind11] Do not support Mac for now conan-io/conan-center-index#11075

[codecov]

Codecov Report

Merging #44 (d380c6b) into main (9e4251c) will decrease coverage by 0.36%.
The diff coverage is n/a.

❗ Current head d380c6b differs from pull request most recent head e245fc8. Consider uploading reports for the commit e245fc8 to get more accurate results

@@            Coverage Diff             @@
##             main      #44      +/-   ##
==========================================
- Coverage   79.84%   79.47%   -0.37%     
==========================================
  Files          22       25       +3     
  Lines        1146     1291     +145     
  Branches      345      709     +364     
==========================================
+ Hits          915     1026     +111     
- Misses        160      165       +5     
- Partials       71      100      +29     

Impacted Files	Coverage Δ
include/caracal/checked.hpp	84.21% <0.00%> (-9.54%)	⬇️
src/experimental.cpp	75.38% <0.00%> (-3.19%)	⬇️
src/reply.cpp	16.90% <0.00%> (-1.97%)	⬇️
src/sniffer.cpp	64.78% <0.00%> (-1.35%)	⬇️
src/builder.cpp	90.29% <0.00%> (-0.24%)	⬇️
src/rate_limiter.cpp	75.92% <0.00%> (-0.08%)	⬇️
src/pretty.cpp	100.00% <0.00%> (ø)
src/checksum.cpp	100.00% <0.00%> (ø)
src/timestamp.cpp	100.00% <0.00%> (ø)
include/caracal/parser.hpp	100.00% <0.00%> (ø)
... and 14 more

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