feat: provision from SSO preferred_username (#5347)

* feat: provision from SSO preferred_username

* update ee ref

backend/ee-repo-ref.txt

@@ -1 +1 @@
-2bb902449b6df37a6a81989ce98f4a12716a01d6
+2dca712cde013e7dda96dc3162e47a148973a0dc

backend/windmill-api/src/users.rs

@@ -2044,7 +2044,7 @@ pub struct LoginUserInfo {
     pub email: Option<String>,
     pub name: Option<String>,
     pub company: Option<String>,
-
+    pub preferred_username: Option<String>,
     pub displayName: Option<String>,
 }