update security

Author: d8vjork

SECURITY.md

@@ -6,7 +6,9 @@ We're also following the [Laravel's default support policy](https://laravel.com/
 
 | Version | Supported          |
 | ------- | ------------------ |
-| 1.x     | :white_check_mark: |
+| 3.x     | :white_check_mark: |
+| 2.x     | :x:                |
+| 1.x     | :x:                |
 <!-- | 2.x     | :white_check_mark: | -->
 <!-- | < 1.0   | :x:                | -->