That’s not a problem. It’s just a deprecation warning from node.js, likely because you are using a newer version of node.js than what n8n is currently developed on. This is a native module in node.js, and has been deprecated recently. But it might be a while before it gets removed from n8n’s dependency tree.
Because of issues like these, we recommend using docker instead, because then you get all dependencies, node.js runtime, file-system permissions, etc pre-configured, and there are no surprises like these.