[CI][RFC] Replace black-jupyter with ruff-format (#37210)

Co-authored-by: Alison Shao <a.shao@wustl.edu>

experimental/sgl-router/tests/scripts/generate_parity_fixtures.py

@@ -85,7 +85,7 @@ def load_tokenizer_with_fallback(primary, fallback, slug):
                 raise
             continue
     raise RuntimeError(
-        f"No accessible tokenizer for slug={slug} " f"(tried: {primary}, {fallback})"
+        f"No accessible tokenizer for slug={slug} (tried: {primary}, {fallback})"
     )