npm WARN deprecated multer@1.4.4: Multer 1.x is affected by CVE-2022-24434. This is fixed in v1.4.4-lts.1 which drops support for versions of Node.js before 6. Please upgrade to at least Node.js 6 and version 1.4.4-lts.1 of Multer. If you need support for older versions of Node.js, we are open to accepting patches that would fix the CVE on the main 1.x release line, whilst maintaining compatibility with Node.js 0.10.
I'm afraid there is not much you can do other than raise an issue against Node-RED in GitHub. It requires an update to Node-RED. Of course, depending on what creates those dependencies, if they are deeply embedded, it might not even be possible to update them.