bin: show update script for linux/macos

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[codecov]

Codecov Report

Attention: Patch coverage is 15.62500% with 27 lines in your changes missing coverage. Please review.

Project coverage is 68.2%. Comparing base (9f04af8) to head (3f1250f).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
bin/src/lib.rs	15.6%	27 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
bin/src/lib.rs	57.9% <15.6%> (-4.9%)	⬇️

... and 6 files with indirect coverage changes