Fix a couple of broken doctests

[JoelPasvolsky]

Seen here:

Failed example:
    annealing_lines = mca.get_properties()
Exception raised: ValueError: API token not defined

Failed example:
    alpha_phi = qubit_freezeout_alpha_phi(eff_temp_phi=0.198, flux_associated_variance=1/1024, estimator_variance=1/256, unit_conversion=1.647e-3)
Exception raised: NameError: name 'qubit_freezeout_alpha_phi' is not defined

The third one is strange:

Failed example:
    print(f'Root mean-square magnetization by iteration:', np.sqrt(np.mean([np.array(v)**2 for v in mag_history.values()], axis=0)))
Expected nothing
Got:
    Root m ...

But the code is

>>> print(f"RMS magnetization by iteration: {n ...

Maybe a caching problem in CI?

[JoelPasvolsky]

Reason third test fails is ocean uses last released version, not main:

dwave-experimental-2025.12.9