Fix deprecation warning regarding setup.py and pyproject.toml

While reviewing @nalonso 's code in !459 (merged) , I created a new Micromamba env on a new laptop, and doing everything over from scratch I got this warning with Py 3.9.12 running pip install -e .:

DEPRECATION: Legacy editable install of autosubmit==4.1.9 from file:///home/kinow/Development/python/workspace/autosubmit (setup.py develop) is deprecated. pip 25.0 will enforce this behaviour change. A possible replacement is to add a pyproject.toml or enable --use-pep517, and use setuptools >= 64. If the resulting installation is not behaving as expected, try using --config-settings editable_mode=compat. Please consult the setuptools documentation for more information. Discussion can be found at https://github.com/pypa/pip/issues/11457

It's probably better that we fix this earlier, instead of waiting until they remove it which may prevent AS from working with newer versions of Python for a simple issue that can be fixed in under one hour.