Readd sed'd out dotnet-sdk dependency

debian/control

@@ -3,6 +3,7 @@ Section: misc
 Priority: optional
 Maintainer: Jellyfin Team <team@jellyfin.org>
 Build-Depends:  debhelper (>= 9),
+                dotnet-sdk-3.1,
                 libc6-dev,
                 libcurl4-openssl-dev,
                 libfontconfig1-dev,