Reenable double-newline-removal for python files properly

[dmontagu]

This is the diff relative to the commit before the latest commit on main.

diff --git a/pytest_examples/eval_example.py b/pytest_examples/eval_example.py
index ddedbb4..aebe106 100644
--- a/pytest_examples/eval_example.py
+++ b/pytest_examples/eval_example.py
@@ -206,8 +206,8 @@ class EvalExample:
 
         :param example: The example to format.
         """
-        self.format_black(example)
         self.format_ruff(example)
+        self.format_black(example)
 
     def format_black(self, example: CodeExample) -> None:
         """

So this is mostly just reverting the previous change, but changing the order here ensures that we don't get wrong reformatting when removing the double newline from python files. (I tested this in pydantic and it seems all doc tests work after running pytest --update-examples)