requirements: update optuna requirement from <4.2.0 to <4.3.0 (#3166)

Updates the requirements on [optuna](https://github.com/optuna/optuna) to permit the latest version.
- [Release notes](https://github.com/optuna/optuna/releases)
- [Commits](optuna/optuna@v4.1.0...v4.2.0)

---
updated-dependencies:
- dependency-name: optuna
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -10,7 +10,7 @@ matplotlib>=3.7.0, <3.10.1
 modeci_mdf<0.5, >=0.4.3; (platform_machine == 'AMD64' or platform_machine == 'x86_64' or platform_machine == 'arm64' or platform_machine == 'aarch64') and platform_python_implementation == 'CPython' and implementation_name == 'cpython'
 networkx<3.5
 numpy>=1.21.0, <1.26.5
-optuna<4.2.0
+optuna<4.3.0
 packaging<25.0
 pandas<2.2.4
 pillow<11.2.0