Link to GH Security Draft Advisory form (#2650)

This gives an option to send vulnerabilities behind an HTTPS connection. It's one recommendation form the OpenSSF Best Practices

Signed-off-by: Mauro Morales <[email protected]>

SECURITY.md

@@ -6,4 +6,4 @@ Kairos supports responsible disclosure and endeavors to resolve security issues
 
 However, as is a community driven project we don't run any bug bounty, but we will make sure credits goes to whom belongs and address the issues as fast as possible, if you can provide also patch and open up a PR that's more than welcome.
 
-To report a security vulnerability, please email [email protected].
+To report a security vulnerability, use [GitHub Security Draft Advisory](https://github.com/kairos-io/kairos/security/advisories/new), if you don't have a GitHub account, please email [email protected].