add ignore pydocstyle in tests

pyproject.toml

@@ -161,7 +161,8 @@ exclude = [
     ".tox",
     ".git",
     "__pycache__",
-    ".ipynb_checkpoints"
+    ".ipynb_checkpoints",
+    "tasks.py",
 ]
 
 [tool.ruff.lint]
@@ -183,16 +184,7 @@ select = [
 ignore = [
     "E501",
     # pydocstyle
-    "D100",
-    "D101",
-    "D102",
-    "D103",
-    "D104",
-    "D105", # Missing docstring in magic method
     "D107",  # Missing docstring in __init__
-    "D205",
-    "D301",
-    "D415",
     "D417",   # Missing argument descriptions in the docstring, this is a bug from pydocstyle: https://github.com/PyCQA/pydocstyle/issues/449
     # pandas-vet
     "PD901",
@@ -212,6 +204,8 @@ lines-between-types = 0
 
 [tool.ruff.lint.per-file-ignores]
 "__init__.py" = ["F401", "E402", "F403", "F405", "E501", "I001"]
+# Ignore pydocstyle in `tests/**.py` directory.
+"tests/**.py" = ["D"]
 
 [tool.ruff.lint.pydocstyle]
 convention = "google"