Update tests

[BaptisteCecconi]

Since I'm willing to add new functionalities on the package, I wanted to make sure that the tests were running correctly before starting.

I realised some tests were failing because remote data changes at ESA and NASA.

Here is a PR that fixes those issues.

[BaptisteCecconi]

@seignovert: it seems we need to update the .github/workflow/actions.yml file to upgrade the version of python used for the tests.

[BaptisteCecconi]

I updated the pylint configuration and very slightly edited some files to be compliant with flake8, pylint and bandit.

[BaptisteCecconi]

I also updated the expected results in the example notebooks and the docs.

[BaptisteCecconi]

All checks are now passing fine.

@seignovert : I let you do the merge when you prefer.

[seignovert]

Hello @BaptisteCecconi,

Everything looks good to me 👍

Thank you very much for this update.