Update Subaccount Logo From URL

Updates the logo for a Subaccount with given id by downloading from given URL. The URL should point to a valid image in a supported image format, and should include the content type for the image in the HTTP response when the image is retrieved from the URL. Supported image types are: PNG (image/png), JPEG (image/jpeg), WEBP (image/webp), and SVG (image/svg+xml).