chore(deps): bump optuna from 4.2.1 to 4.3.0

Bumps [optuna](https://github.com/optuna/optuna) from 4.2.1 to 4.3.0.
- [Release notes](https://github.com/optuna/optuna/releases)
- [Commits](https://github.com/optuna/optuna/compare/v4.2.1...v4.3.0)

---
updated-dependencies:
- dependency-name: optuna
  dependency-version: 4.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements-hyperopt.txt

@@ -5,5 +5,5 @@
 scipy==1.15.3
 scikit-learn==1.6.1
 filelock==3.18.0
-optuna==4.2.1
+optuna==4.3.0
 cmaes==0.11.1