feat: Compile with LTO for slight speedup

[Isawan]

In my local testing, requests went from ~15K request per seconds to ~18K requests per seconds.

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.17% 🎉

Comparison is base (32ca3f5) 86.10% compared to head (6c141ee) 86.27%.
Report is 1 commits behind head on main.

❗ Current head 6c141ee differs from pull request most recent head f2ef461. Consider uploading reports for the commit f2ef461 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #56      +/-   ##
==========================================
+ Coverage   86.10%   86.27%   +0.17%     
==========================================
  Files          17       17              
  Lines        1166     1166              
==========================================
+ Hits         1004     1006       +2     
+ Misses        162      160       -2     

see 1 file with indirect coverage changes

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