chore: some minor updates (#1051)

A few things I noticed that can be updated. Modern version of ruff can
auto-detect `src` layout. scikit-build-core 0.10+ can read the min
version from the `build-system.requires` table.

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["scikit-build-core[pyproject]>=0.5", "pybind11>=2.12"]
+requires = ["scikit-build-core>=0.10", "pybind11>=2.12"]
 build-backend = "scikit_build_core.build"
 
 [project]
@@ -73,7 +73,7 @@ doc = [
 ]
 
 [tool.scikit-build]
-minimum-version = "0.5"
+minimum-version = "build-system.requires"
 build-dir = "build/{wheel_tag}"
 sdist.exclude = ["extern/root"]
 sdist.include = ["extern/root/math/minuit2/inc", "extern/root/math/minuit2/src"]
@@ -90,9 +90,6 @@ filterwarnings = [
     "error::FutureWarning",
 ]
 
-[tool.ruff]
-src = ["src"]
-
 [tool.ruff.lint]
 extend-select = [
     "D", # pydocstyle