feat: add black formatter support for Python files

[thiagohcaserta]

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Description

The project supports ruff and uv as Python formatters, but not black, which remains the most widely adopted Python formatter. Many projects still rely on black, especially those that haven't migrated to ruff yet. Adding it as a fallback formatter (deferred to ruff when both are present) would improve the Python formatting coverage.

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What needs to be fixed:

• Feature request titles must start with [FEATURE]: (e.g., [FEATURE]: Add black formatter support for Python files)

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[github-actions]

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