Use ruff to enforce python code formatting (#37117)

Requires servo/servo#37045 for deps and config.

Testing: No need for tests to test tests.
Fixes: servo/servo#37041

---------

Signed-off-by: zefr0x <zer0-x.7ty50@aleeas.com>

etc/crates-graph.py

@@ -35,6 +35,7 @@ def main(crate=None):
                 for dependency in graph.get(name, []):
                     filtered.setdefault(name, []).append(dependency)
                     traverse(dependency)
+
         traverse(crate)
     else:
         filtered = graph