Update SECURITY.md (#416)

SECURITY.md

@@ -2,11 +2,11 @@
 
 ## Supported Versions
 
-As of February 2022 (and until this document is updated), the latest version `v4` is supported.
+As of November 2024 (and until this document is updated), the latest version `v5` is supported. In critical cases, we might supply back-ported patches for `v4`.
 
 ## Reporting a Vulnerability
 
-If you think you found a vulnerability, and even if you are not sure, please report it to [email protected] or one of the other [golang-jwt maintainers](https://github.com/orgs/golang-jwt/people). Please try be explicit, describe steps to reproduce the security issue with code example(s).
+If you think you found a vulnerability, and even if you are not sure, please report it a [GitHub Security Advisory](https://github.com/golang-jwt/jwt/security/advisories/new). Please try be explicit, describe steps to reproduce the security issue with code example(s).
 
 You will receive a response within a timely manner. If the issue is confirmed, we will do our best to release a patch as soon as possible given the complexity of the problem.