Replace always() in CI workflows

[regisss]

What does this PR do?

CI workflows' jobs currently use if: ${{ always() }} so that all jobs are always executed (even if previous jobs failed). However, with this conditional statement, jobs are not cancellable (see here). This is annoying when the self-hosted runner cannot be found (for example because it could not be created when no DL1 instance is available on AWS) because in that case the job can spend days looking for the runner (see here) while it can not be manually cancelled. This issue has been discussed here, here and here.

The suggested workaround is to use the status check functions success, failure and cancelled.

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you make sure to update the documentation with your changes?
• Did you write any new necessary tests?

[HuggingFaceDocBuilderDev]

The documentation is not available anymore as the PR was closed or merged.