fix: exclude unneeded files from SDist

SDist goes from ~350kB to ~200kB

Author: mayeut

pyproject.toml

@@ -60,6 +60,7 @@ wheel.expand-macos-universal-tags = true
 metadata.version.provider = "scikit_build_core.metadata.setuptools_scm"
 metadata.readme.provider = "scikit_build_core.metadata.fancy_pypi_readme"
 install.components = ["python"]
+sdist.exclude = ["**/.github", "/noxfile.py", "/ninja-python-distributions-logo.png", "/docs", "/scripts", "/ninja-upstream/doc", "!/ninja-upstream/misc", "/ninja-upstream/misc/**", "!/ninja-upstream/misc/ninja_syntax.py"]
 
 
 [[tool.scikit-build.generate]]