Re-run and seed SBC tutorial

[manuel-morales-a]

What does this implement/fix? Explain your changes

This small PR fixes the random seed at the beginning of the SBC tutorial. In this way, the results that one obtains are reproducible and consistent with the text of the tutorial.

Does this close any currently open issues?

Fixes #1312.

Any relevant code examples, logs, error output, etc?

I have run the required linting and unit tests. The file I have changed does not present any errors (Maybe *.ipynb are not checked), but some other files do (to be addressed in a different issue/PR).

Any other comments?

N/a.

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[janfb]

Thanks @manuel-morales-a! 🙏

The execution count indicates that you executed the notebooks cells multiple times, probably for testing. For merging this, it would be nice to have all cells executed in order from top to bottom.
Could you please restart the kernel and execute all cells from top? E.g., in VSCode, just click restart and then run all.

[manuel-morales-a]

You're right! Cells have been properly executed now!

Best,

Manuel

[janfb]

Great, thanks! Ready to be merged then 🎉

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.65%. Comparing base (d3f22b5) to head (e2e9eee).
Report is 5 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1336       +/-   ##
===========================================
- Coverage   89.40%   78.65%   -10.76%     
===========================================
  Files         118      118               
  Lines        8715     8722        +7     
===========================================
- Hits         7792     6860      -932     
- Misses        923     1862      +939     

Flag	Coverage Δ
unittests	78.65% <ø> (-10.76%)	⬇️

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see 32 files with indirect coverage changes