Fix one test

Author: tishun

tests/test_main.py

@@ -15,6 +15,8 @@ class TestRedisMCPServer:
 
     def test_init_prints_startup_message(self, capsys):
         """Test that RedisMCPServer initialization prints startup message."""
+        server = RedisMCPServer()
+
         captured = capsys.readouterr()
         assert "Starting the Redis MCP Server" in captured.err