Apply repo-review suggestion RF003

RF003: src directory doesn't need to be specified anymore (0.6+)

Ruff now (0.6+) looks in the src directory by default. The src
setting doesn't need to be specified if it's just set to `["src"]`.

pyproject.toml

@@ -57,9 +57,6 @@ module = ["_manylinux"]
 ignore_missing_imports = true
 
 
-[tool.ruff]
-src = ["src"]
-
 [tool.ruff.lint]
 extend-select = [
     "B",