Fix hydra warnings

[ylep]

Description

Fix a couple of hydra-related warnings that appear at hsf start-up time.

Type of change

• Bug fix (non-breaking change which fixes an issue)

Test Configuration:

• OS: Ubuntu 22.04
• Python version: 3.10.12
• Any other relevant config detail: hydra-core==1.3.2

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[ylep]

@clementpoiret it seems that the CI pipeline needs an update (the poetry install action dropped support for Python 3.7). Feel free to merge regardless or to wait for a proper fix, no hurry...

I can just tell you that tests pass locally on Python 3.10.12.

[clementpoiret]

Thanks for the update, I'll also update the CI pipeline :)