pyproject.toml -> standardize on black

pyproject.toml

@@ -64,31 +64,3 @@ write_to = "src/build123d/_version.py"
 [tool.black]
 target-version = ["py39", "py310", "py311", "py312"]
 line-length = 88
-
-[tool.ruff]
-# Same as Black.
-line-length = 88
-indent-width = 4
-
-[tool.ruff.format]
-# Like Black, use double quotes for strings.
-quote-style = "double"
-
-# Like Black, indent with spaces, rather than tabs.
-indent-style = "space"
-
-# Like Black, respect magic trailing commas.
-skip-magic-trailing-comma = false
-
-# Like Black, automatically detect the appropriate line ending.
-line-ending = "auto"
-
-# Enable auto-formatting of code examples in docstrings. Markdown,
-# reStructuredText code/literal blocks and doctests are all supported.
-#
-# This is currently disabled by default, but it is planned for this
-# to be opt-out in the future.
-docstring-code-format = false
-
-# Keep single-line signatures when body is an Ellipsis
-preview = true