Expected behavior

OptunaSearchCV should call params as fit_params is deprecated in sklearn 1.4.0

Environment

• Optuna version: 3.5.0
• Python version: 3.12.1
• OS:
• (Optional) Other libraries and their versions: Scikit-learn 1.4.0

Error messages, stack traces, or logs

warnings.warn(/Users/adit/miniforge3/envs/bench_cp/lib/python3.12/sitepackages/sklearn/model_selection/_validation.py:73: FutureWarning: `fit_params` is deprecated and will be removed in version 1.6. Pass parameters via `params` instead.

Steps to reproduce

    cv = StratifiedKFold(n_splits=5, shuffle=True, random_state=42)
    optuna_search = OptunaSearchCV(clf, optuna_params, cv=cv, verbose=3, scoring='roc_auc', n_jobs=-1)
    optuna_search.fit(X, y)

Additional context (optional)

No response