Update dependency treelite to v4.6.0 (#2761)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

requirements-test.txt

@@ -15,7 +15,7 @@ xgboost==3.0.5 ; python_version >= '3.10'
 lightgbm==4.6.0
 catboost==1.2.8
 shap==0.49.1
-treelite==4.5.1
+treelite==4.6.0
 array-api-compat==1.11.2 ; python_version < '3.10'
 array-api-compat==1.12.0 ; python_version >= '3.10'
 array-api-strict==2.3.1 ; python_version < '3.12'