Add silnite support (fix #701) (#714)

src/steps/os/macos.rs

@@ -32,6 +32,13 @@ pub fn run_mas(run_type: RunType) -> Result<()> {
     run_type.execute(mas).arg("upgrade").check_run()
 }
 
+pub fn run_silnite(ctx: &ExecutionContext) -> Result<()> {
+    let silnite = require("silnite")?;
+    print_separator("Silnite");
+
+    ctx.run_type().execute(silnite).arg("au").check_run()
+}
+
 pub fn upgrade_macos(ctx: &ExecutionContext) -> Result<()> {
     print_separator("macOS system update");