Enhance clippy warning detection in nightly tests

[jpraynaud]

Why

Some clippy warnings are not detected with the command parameter --all-features. We want to enhance the detection mechanism of these warnings.

What

Test (almost) all combinations of the features in the nightly test.

How

• In the nightly tests:
  • Create a dynamic matrix with the crates
  • For each crate, run clippy for all the combinations of the features for the crate