chore: replace black, flake8 and isort with ruff and ruff-format

[gruebel]

This PR

same as in open-feature/python-sdk#249

• merged both workflows merge.yml and pullrequest.yml into build.yml, like in the python-sdk project, they were almost identical, just the trigger was different
• also migrated from container based builds to the normal host ones by leveraging setup-python GHA, same as in the python-sdk project

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (684a90a) 63.44% compared to head (fd02ae9) 85.12%.

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #30       +/-   ##
===========================================
+ Coverage   63.44%   85.12%   +21.67%     
===========================================
  Files           8        6        -2     
  Lines         238      121      -117     
===========================================
- Hits          151      103       -48     
+ Misses         87       18       -69     

Flag	Coverage Δ
unittests	85.12% <ø> (+21.67%)	⬆️

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[beeme1mr]

Did you intend to remove CodeQL?

[gruebel]

@beeme1mr it is still there, previously named pullrequest.yml, now build.yml file. Just need to expand at the bottom of the file, tries to hide itself 😄

[beeme1mr]

🤦 my bad... the change looks good.

[gruebel]

@beeme1mr do you know what the required build (python:3.8) checks are? I don't see them anywhere defined, so not sure why they are hanging.

[beeme1mr]

@beeme1mr do you know what the required build (python:3.8) checks are? I don't see them anywhere defined, so not sure why they are hanging.

The branch protection rules needed to be updated.