Update pyproject.toml

Author: mayeut

pyproject.toml

@@ -187,6 +187,7 @@ exclude = ["src/cmake/_version.py"]
 flake8-unused-arguments.ignore-variadic-names = true
 
 [tool.ruff.lint.per-file-ignores]
+"_build_backend/backend.py" = ["PLC0415"]
 "docs/conf.py" = ["E402"]
 "*.pyi" = ["ARG001"]
 "noxfile.py" = ["PLW0603"]