docs(security): update supported versions and reporting policy

Author: Mirkoddd

SECURITY.md

@@ -4,7 +4,8 @@
 
 | Version | Supported          |
 | ------- | ------------------ |
-| 4.x.x   | :white_check_mark: |
+| 5.x.x   | :white_check_mark: |
+| 4.x.x.  | :white_check_mark: |
 | < 4.0.0 | :x:                |
 
 ## Reporting a Vulnerability