ci(tests): add speed benchmark using CodSpeed

[frgfm]

This PR adds Codspeed to benchmark the impact on latency of each code change.

[socket-security]

New dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher
pypi/[email protected]	environment, filesystem	0	30 kB	art049

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.27%. Comparing base (43b9a05) to head (7dcc0d4).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #270   +/-   ##
=======================================
  Coverage   97.27%   97.27%           
=======================================
  Files           8        8           
  Lines         441      441           
=======================================
  Hits          429      429           
  Misses         12       12           

[codspeed-hq]

CodSpeed Performance Report

Congrats! CodSpeed is installed 🎉

🆕 1 new benchmarks were detected.

You will start to see performance impacts in the reports once the benchmarks are run from your default branch.

Detected benchmarks

• test_classification_metric (2 s)