website/docs: 2024.2 release notes (#8468)

Co-authored-by: Tana M Berry <tanamarieberry@yahoo.com>
Co-authored-by: Jens L. <jens@goauthentik.io>
Co-authored-by: Jens Langhammer <jens@goauthentik.io>

website/docs/policies/expression.mdx

@@ -59,6 +59,12 @@ import Objects from "../expressions/_objects.md";
     return context["geoip"].country.iso_code == "US"
     ```
 
+-   `asn`: ASN object, see [GeoIP](https://geoip2.readthedocs.io/en/latest/#geoip2.models.ASN)
+
+    ```python
+    return context["asn"].autonomous_system_number == 64496
+    ```
+
 -   `ak_is_sso_flow`: Boolean which is true if request was initiated by authenticating through an external provider.
 -   `ak_client_ip`: Client's IP Address or 255.255.255.255 if no IP Address could be extracted. Can be [compared](#comparing-ip-addresses), for example