fix: ruff format - remove extra blank lines in test_streamable_http.py

Author: Ashutosh0x

tests/shared/test_streamable_http.py

@@ -1444,7 +1444,6 @@ async def handle_call_tool(name: str, args: dict[str, Any]) -> list[TextContent]
             return [TextContent(type="text", text=f"Unknown tool: {name}")]
 
 
-
 # Server runner for context-aware testing
 def run_context_aware_server(port: int):  # pragma: no cover
     """Run the context-aware test server."""