Release 2.4.0

[chyunsu3]

The new release will incorporate the following changes:

• Test GTIL with IsolationForest #370
• [CI] Use supported versions of Windows #381
• [XGBoost 1.6] Handle pseudo-Huber loss with slope #380
• Support XGBoost classifiers with num_class > 2, num_parallel_tree > 1 #383

[codecov]

Codecov Report

Merging #384 (0e490dd) into mainline (7da3f32) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@              Coverage Diff               @@
##             mainline     #384      +/-   ##
==============================================
- Coverage       85.24%   85.23%   -0.02%     
  Complexity         42       42              
==============================================
  Files             108      108              
  Lines            8732     8732              
  Branches          523      523              
==============================================
- Hits             7444     7443       -1     
- Misses           1265     1266       +1     
  Partials           23       23              

Impacted Files	Coverage Δ
src/predictor/thread_pool/spsc_queue.h	93.75% <0.00%> (-2.09%)	⬇️

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