Update README.md

I would consider 'Unmaintained' as an attribute of the status, so it is clear that users should not use Dex with SAML for new configurations, and migrate existing ones.

Unmaintained is currently in the note, which is prominently visible, but a note is a note, and maintained is a state-us.. :) 

Signed-off-by: Asaf Levy <asaf400@gmail.com>

README.md

@@ -69,7 +69,7 @@ Dex implements the following connectors:
 | ---- | ----------------------- | --------------------- | --------------------------------- | ------ | ----- |
 | [LDAP](https://dexidp.io/docs/connectors/ldap/) | yes | yes | yes | stable | |
 | [GitHub](https://dexidp.io/docs/connectors/github/) | yes | yes | yes | stable | |
-| [SAML 2.0](https://dexidp.io/docs/connectors/saml/) | no | yes | no | stable | WARNING: Unmaintained and likely vulnerable to auth bypasses ([#1884](https://github.com/dexidp/dex/discussions/1884)) |
+| [SAML 2.0](https://dexidp.io/docs/connectors/saml/) | no | yes | no | stable (Unmaintained) | WARNING: Unmaintained and likely vulnerable to auth bypasses ([#1884](https://github.com/dexidp/dex/discussions/1884)) |
 | [GitLab](https://dexidp.io/docs/connectors/gitlab/) | yes | yes | yes | beta | |
 | [OpenID Connect](https://dexidp.io/docs/connectors/oidc/) | yes | yes | yes | beta | Includes Salesforce, Azure, etc. |
 | [OAuth 2.0](https://dexidp.io/docs/connectors/oauth/) | no | yes | yes | alpha | |