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

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

sgl-model-gateway/bindings/python/src/sglang_router/mini_lb.py

@@ -131,7 +131,6 @@ class MiniLoadBalancer:
                 total=self.timeout
             )  # Add timeout for request reliability
         ) as session:
-
             tasks = [
                 session.post(f"{prefill_server}/{endpoint}", json=prefill_req),
                 session.post(f"{decode_server}/{endpoint}", json=decode_req),
@@ -141,7 +140,6 @@ class MiniLoadBalancer:
             prefill_response, decode_response = await asyncio.gather(*tasks)
 
             if "return_logprob" in modified_request:
-
                 prefill_json = await prefill_response.json()
                 ret_json = await decode_response.json()
 

sgl-model-gateway/bindings/python/src/sglang_router/router_args.py

@@ -1069,7 +1069,6 @@ class RouterArgs:
 
         prefill_urls = []
         for prefill_args in prefill_list:
-
             url = prefill_args[0]
 
             # Handle optional bootstrap port

sgl-model-gateway/bindings/python/tests/test_startup_sequence.py

@@ -788,7 +788,7 @@ def test_find_available_ports_and_wait_health(monkeypatch):
     monkeypatch.setattr(
         ls.time,
         "perf_counter",
-        lambda: (base.__setitem__("t", base["t"] + 0.1) or base["t"]),
+        lambda: base.__setitem__("t", base["t"] + 0.1) or base["t"],
     )
 
     assert ls.wait_for_server_health("127.0.0.1", 12345, timeout=1)
@@ -922,7 +922,6 @@ def test_launch_server_process_declares_on_a_resolved_record(monkeypatch):
         )
 
         with patch("sglang_router.launch_router.logger") as mock_logger:
-
             with pytest.raises(
                 ValueError, match="PD disaggregation mode requires --prefill"
             ):