docs: fix macos install guide

[foray1010]

--with-lldb --with-toolchain are removed from https://github.com/Homebrew/homebrew-core/blob/master/Formula/llvm.rb

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.98%. Comparing base (4b868f7) to head (a316b85).
Report is 54 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #373      +/-   ##
==========================================
- Coverage   79.53%   78.98%   -0.55%     
==========================================
  Files          33       33              
  Lines        4744     4744              
==========================================
- Hits         3773     3747      -26     
- Misses        971      997      +26     

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[RafaelGSS]

LGTM.