Rerun all tests and update references with most recent version of the code

[giovannipizzi]

• This should also fix Tolerance failure in test on arm64 architecture #678 and Tolerance exceeded in test on linux aarch64 #655 (to be checked).
• This should be done just before releasing 4.0.3 to have the most recent code version.
• With the new pytest approach, it should be as easy as doing pytest --update-benchmarks in the tests folder.
• Important to check the git diff: apart from cosmetic changes (header change etc.), check that no sensible change happened. Important also to check that all tests pass BEFORE regenerating the references, and regenerate them only if ALL tests pass.

[LecrisUT]

I am curious what this issue means. Let me know if and how here is a divergence between test and source files that I should be aware of when packaging