Add isort and Black

[lucacome]

• Adds isort and Black
• Formats all the tests

[lucacome]

@vepatel I noticed this warning 🤔

.../tests/suite/test_prometheus_metrics.py:191: SyntaxWarning: assertion is always true, perhaps remove parentheses?

[codecov-commenter]

Codecov Report

Merging #2929 (f6b95f1) into main (9996ce6) will decrease coverage by 0.02%.
The diff coverage is n/a.

❗ Current head f6b95f1 differs from pull request most recent head a12d01b. Consider uploading reports for the commit a12d01b to get more accurate results

@@            Coverage Diff             @@
##             main    #2929      +/-   ##
==========================================
- Coverage   53.01%   52.99%   -0.03%     
==========================================
  Files          58       58              
  Lines       15651    15651              
==========================================
- Hits         8298     8294       -4     
- Misses       7076     7078       +2     
- Partials      277      279       +2     

Impacted Files	Coverage Δ
internal/k8s/configuration.go	95.39% <0.00%> (-0.37%)	⬇️

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[vepatel]

@lucacome .../tests/suite/test_prometheus_metrics.py:191: SyntaxWarning: assertion is always true, perhaps remove parentheses? is a legitimate warning because interpreter is treating it as a tuple which is equivalent to assert True, moving parentheses before comma will fix it.

[vepatel]

@lucacome seems like formatter is failing to execute, should we include a pyproject.toml with black and flake8 config?

[lucacome]

the pyproject.toml already has black, but unfortunately flake8 doesn't support it at least for now PyCQA/flake8#234 (comment)

did you run make lint-python? you would need to run it manually (the workflow in the CI is just a check)...at least until this goes in #2154 😅