Fix pytest-parametrize-names-wrong-type (PT006) to edit both argnames and argvalues if both of them are single-element tuples/lists (#14699)

## Summary

Close #11243. Fix `pytest-parametrize-names-wrong-type (PT006)` to edit
both `argnames` and `argvalues` if both of them are single-element
tuples/lists.

```python
# Before fix
@pytest.mark.parametrize(("x",), [(1,), (2,)])
def test_foo(x):
    ...

# After fix:
@pytest.mark.parametrize("x", [1, 2])
def test_foo(x):
    ...
```

## Test Plan

New test cases

crates/ruff_linter/resources/test/fixtures/flake8_pytest_style/PT006.py

@@ -81,3 +81,78 @@ def test_not_decorator(param1, param2):
 @pytest.mark.parametrize(argnames=("param1,param2"), argvalues=[(1, 2), (3, 4)])
 def test_keyword_arguments(param1, param2):
     ...
+
+
+@pytest.mark.parametrize(("param",), [(1,), (2,)])
+def test_single_element_tuple(param):
+    ...
+
+
+@pytest.mark.parametrize(("param",), [[1], [2]])
+def test_single_element_list(param):
+    ...
+
+
+@pytest.mark.parametrize(("param",), [[1], [2]])
+def test_single_element_list(param):
+    ...
+
+
+# Unsafe fix
+@pytest.mark.parametrize(
+    (
+        # comment
+        "param",
+    ),
+    [[1], [2]],
+)
+def test_comment_in_argnames(param):
+    ...
+
+# Unsafe fix
+@pytest.mark.parametrize(
+    ("param",),
+    [
+        (
+            # comment
+            1,
+        ),
+        (2,),
+    ],
+)
+def test_comment_in_argvalues(param):
+    ...
+
+
+# Safe fix
+@pytest.mark.parametrize(
+    ("param",),
+    [
+        (1,),
+        # comment
+        (2,),
+    ],
+)
+def test_comment_between_argvalues_items(param):
+    ...
+
+
+# A fix should be suggested for `argnames`, but not for `argvalues`.
+@pytest.mark.parametrize(
+    ("param",),
+    [
+        (1,),
+        (2, 3),
+    ],
+)
+def test_invalid_argvalues(param):
+    """
+    pytest throws the following error for this test:
+    ------------------------------------------------
+    a.py::test_comment_between_argvalues_items: in "parametrize" the number of names (1):
+        ('param',)
+    must be equal to the number of values (2):
+        (2, 3)
+    ------------------------------------------------
+    """
+    ...

crates/ruff_linter/resources/test/fixtures/flake8_pytest_style/PT006_and_PT007.py

@@ -0,0 +1,5 @@
+import pytest
+
+@pytest.mark.parametrize(("param",), [[1], [2]])
+def test_PT006_and_PT007_do_not_conflict(param):
+    ...