chore(release): 6.9.0 [skip ci]

# [6.9.0](https://gitlab.com/to-be-continuous/python/compare/6.8.1...6.9.0) (2024-04-13)

### Features

* add  Ruff linter job ([ef364ef6](https://gitlab.com/to-be-continuous/python/commit/ef364ef65dad8034b7c7af60bb25195cf20ba466))
* some log improvement ([aef5a056](https://gitlab.com/to-be-continuous/python/commit/aef5a056d09b22e2c6ce2fa8038632c912e11637))