Update CAO default install to 2.9.0 during init.

Author: brett19

cmd/init.go

@@ -41,7 +41,7 @@ import (
 )
 
 const (
-	DefaultCaoVersion = "2.8.0"
+	DefaultCaoVersion = "2.9.0"
 )
 
 var initCmd = &cobra.Command{