feat: activate minmium plotting for integration tests

[anaprietonem]

Description

Testing plots it's not part our current testing suite. Since most of them are implemented via callbacks a simple way would be to activate a minimal plotting set up for the integration test to ensure we don't break them in the future.

This PR proposes those changes:

• Spectrum plot it's quite slow so for now it's deactivated for the SG model
• Since the test dataset for LAM and SG is a small one we just test plotting tp
• The plots for the interpolator are deactivated - while the callbacks run the output produced is not scientifically correct. More work will be done in the future to address this (@mc4117 - notified about this in slack channel)
• In the hierarchical model - current plotting of edge features is not support - this plot is for now deactivated. (Discussed with @icedoom888 )

cc: @VeraChristina - having those tests would also be useful in the context of multiple datasets to ensure there is no feature regression for plotting.

What problem does this change solve?

What issue or task does this change relate to?

Additional notes

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[VeraChristina]

Thanks for adding this! Everything looks good!

Just wondering if we can reduce test time by not plotting in some of the tests (like restarting training, starting from checkpoint, using an existing graph etc.) where testing the plotting functionality should be covered by the basic training cycle test for the use case

[mc4117]

LGTM!

[mc4117]

LGTM! Thanks for fixing the issue with the old eda callback!