style: reformat with ruff 0.4 (CI version) for #225

Author: arnoldwender

tests/test_mcp_stdio_protection.py

@@ -78,6 +78,6 @@ def test_mcp_server_no_stdout_noise_on_clean_exit():
         capture_output=True,
         timeout=60,
     )
-    assert proc.stdout == b"", (
-        f"stdout must be empty before the first JSON-RPC response, but got: {proc.stdout!r}"
-    )
+    assert (
+        proc.stdout == b""
+    ), f"stdout must be empty before the first JSON-RPC response, but got: {proc.stdout!r}"