Ouranosinc / xclim / 6565547804

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Linting with Ruff (#1504)

### What kind of change does this PR introduce?

* Removed the configuration blocks in setup.cfg for `pydocstyle` and
`pycodestyle`, and removed most of the checking performed by `flake8`
(flake8 still needed for `flake8-alphabetize` and `flake8-rst`).
* Updated `pyproject.toml` with Ruff-based equivalent linting
configuration
* Updated `tox.ini` and `Makefile` to use Ruff. Reordered order of
linting calls to trigger more typical violations first.
* Updated dependencies.

### Does this PR introduce a breaking change?

Yes. Ruff is now a dev dependency, while `pycodestyle` and `pydocstyle`
are no longer required. The checks that were being performed by those
libraries are now redundant thanks to the new configuration.

### Other information:

Ruff is a linter for Python (built with Rust) that is blazingly fast and
has been in development for around 1.5 years. [Ruff v0.1.0 was released
today](https://astral.sh/blog/ruff-v0.1.0).

22 of 22 new or added lines in 14 files covered. (100.0%)

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