[core] Enable ruff PTH (flake8-use-pathlib) lint family (#16661)

pyproject.toml

@@ -127,6 +127,7 @@ select = [
   "NPY",  # numpy-specific rules
   "PERF", # performance
   "PL",   # pylint
+  "PTH",  # flake8-use-pathlib
   "PYI",  # flake8-pyi
   "Q",    # flake8-quotes
   "RSE",  # flake8-raise