Apply ruff/flake8-pytest-style rule PT006

PT006 Wrong type passed to first argument of `pytest.mark.parametrize`; expected `tuple`

codespell_lib/tests/test_dictionary.py

diff --git a/codespell_lib/tests/test_dictionary.py b/codespell_lib/tests/test_dictionary.py
index 85a6b86..617345d 100644
--- a/codespell_lib/tests/test_dictionary.py
+++ b/codespell_lib/tests/test_dictionary.py
@@ -47,7 +47,7 @@
     for d in _builtin_dictionaries
 ]
 fname_params = pytest.mark.parametrize(
-    "fname, in_aspell, in_dictionary", _fnames_in_aspell
+    ("fname", "in_aspell", "in_dictionary"), _fnames_in_aspell
 )