Switch lint/isort/format to Ruff

[akx]

As discussed in YatingMusic/miditoolkit#35.

More lint rules could be enabled later, this uses the most barebones default.

[akx]

Ah, tests didn't run because I (thankfully) don't have access to your GitHub build secrets.

I added a commit that changes the logic to read it from an environment variable if set, and skip hf_token -requiring tests otherwise.

[codecov]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (535c1e8) 90.34% compared to head (6795d20) 90.34%.

Files	Patch %	Lines
tests/benchmark_fast_bpe.py	0.00%	4 Missing ⚠️
miditok/__init__.py	80.00%	1 Missing ⚠️
setup.py	0.00%	1 Missing ⚠️
tests/conftest.py	87.50%	1 Missing ⚠️
tests/test_methods.py	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #105      +/-   ##
==========================================
- Coverage   90.34%   90.34%   -0.01%     
==========================================
  Files          33       33              
  Lines        4587     4586       -1     
==========================================
- Hits         4144     4143       -1     
  Misses        443      443              

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[Natooz]

Thanks a lot for these improvements.
Just found two fixes

[Natooz]

Thanks again for this PR!

I will also follow the pytest formatting from miditoolkit here, along with hatch... Unless you want to take care of it, but I'm not asking anything here, you already did a lot! ❤️