Replace black with ruff for code formatting

[norkans7]

No description provided.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.79%. Comparing base (b0375a8) to head (842a226).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #119   +/-   ##
=======================================
  Coverage   99.79%   99.79%           
=======================================
  Files           9        9           
  Lines        1443     1443           
=======================================
  Hits         1440     1440           
  Misses          3        3           

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[Copilot]

Pull request overview

This PR updates the repository’s formatting setup to rely on Ruff formatting rather than Black, aligning configuration and CI naming with the intended formatter.

Changes:

• Remove the [tool.black] configuration from pyproject.toml.
• Update the CI workflow step name to reflect that formatting checks are performed via ruff format --check.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
pyproject.toml	Removes Black config; retains Ruff config that now effectively governs formatting.
.github/workflows/ci.yml	Renames the formatting step to accurately describe the Ruff formatter check being run.

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[Copilot]

[tool.ruff] is configured with line-length = 120, but isort is still configured with line_length = 119 (see the [tool.isort] section further down in this file). Now that formatting is handled by Ruff, these mismatched line-length settings can lead to inconsistent wrapping behavior across tools; it’s best to align on a single value (e.g., set both to 120, or keep both at 119 to preserve existing formatting).

[Copilot]

fix = true makes ruff check run in fix mode by default. Since CI runs ruff check temba_client without --no-fix, this can cause the linter step to mutate files in CI (and potentially mask issues depending on exit-code behavior). Consider setting fix = false in config and enabling fixes only in local/dev commands, or add --no-fix in CI (and optionally --exit-non-zero-on-fix where fixes are allowed).

Suggested change

	fix = true
	fix = false