Update proxy doc in reference architecture (#25230)

Small change from a slack convo -
https://fleetdm.slack.com/archives/C019WG4GH0A/p1736282697358929

Co-authored-by: Harrison John <harrisonjohn@mac.lan>

docs/Deploy/Reference-Architectures.md

@@ -111,7 +111,7 @@ In order for osqueryd clients to connect, the connection to Fleet must use TLS.
 
 ## Using a proxy
 
-If you are in an enterprise environment where Fleet is behind a proxy and you would like to be able to retrieve vulnerability data for [vulnerability processing](https://fleetdm.com/docs/using-fleet/vulnerability-processing#vulnerability-processing), it may be necessary to configure the proxy settings. Fleet automatically uses the `HTTP_PROXY`, `HTTPS_PROXY`, and `NO_PROXY` environment variables.
+In enterprise environments where Fleet operates behind a proxy, you may need to configure proxy settings to enable services requiring outbound traffic, such as [vulnerability processing](https://fleetdm.com/docs/using-fleet/vulnerability-processing#vulnerability-processing) or [device management](https://fleetdm.com/device-management). Fleet automatically uses the `HTTP_PROXY`, `HTTPS_PROXY`, and `NO_PROXY` environment variables.
 
 For example, to configure the proxy in a systemd service file: