MAINT: modernize ruff config

Author: gdementen

pyproject.toml

@@ -15,16 +15,6 @@ filterwarnings = [
 ]
 
 [tool.ruff]
-# Enable Pyflakes `E` and `F` codes by default.
-select = ["E", "F"]
-ignore = []
-#select = ["ALL"]
-#ignore = ["ANN", "Q", "D100", "D104"]
-
-# Allow autofix for all enabled rules (when `--fix`) is provided.
-# fixable = ["A", "B", "C", "D", "E", "F", "..."]
-# unfixable = []
-
 # Exclude a variety of commonly ignored directories.
 exclude = [
     ".eggs",
@@ -38,13 +28,22 @@ exclude = [
 ]
 
 line-length = 120
-target-version = "py38"
 
-[tool.ruff.per-file-ignores]
+[tool.ruff.lint]
+# Enable Pyflakes `E` and `F` codes by default.
+select = ["E", "F"]
+ignore = []
+
+# Allow autofix for all enabled rules (when `--fix`) is provided.
+# fixable = ["A", "B", "C", "D", "E", "F", "..."]
+# unfixable = []
+
+[tool.ruff.lint.per-file-ignores]
 "*\\tests\\test_*" = [
     "S101",   # allow using assert in test functions
     "D103"    # do not require docstrings for test functions
 ]
 
-[tool.ruff.pydocstyle]
+[tool.ruff.lint.pydocstyle]
 convention = "numpy"
+