I’ve tried two things and both are not accepted by the email providers.
Host the file in the file library. This doesn’t work because the link available is in the CDN of weweb therefore not accepted by email providers.
Host the file in the file library. Build a single page with just the SVG image in it. This is not accepted because the email providers are looking for a .svg not a webpage.
Thank you very much @Broberto for pointing me in the right direction. I’ll set up the solution on Xano and post the solution here later this week. Maybe someone else will find it useful.