Silent install command for Syncplify Server! 7.1.3

We don't have silent install data for Syncplify Server! yet - the manifest doesn't declare silent switches and the installer type has no safe default.

Use winget for the cleanest path: winget install --id Syncplify.Server --exact 7.1.3 --silent --accept-package-agreements --accept-source-agreements. If winget isn't viable in your environment, package the publisher's installer directly using the silent switches above.

The switches marked "Declared by publisher" come from the winget manifest the publisher (or community maintainer) submitted to microsoft/winget-pkgs. Switches marked "Default for EXE (in ZIP)" come from the installer framework's documented defaults.