[surrogate][sequential] fix bugs for pylink run_model for PyLink option.

examples/analytical_function/analytical_function.py

examples/analytical_function/test_analytical_function.py

src/bayesvalidrox/pylink/pylink.py

src/bayesvalidrox/surrogate_models/adaptPlot.py

src/bayesvalidrox/surrogate_models/sequential_design.py

src/bayesvalidrox/surrogate_models/surrogate_models.py