Scope admin.avatar wording to List all admins

avatar.type is only sent by List all admins, and there avatar depends on display_avatar rather than an upload or gravatar.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

Author: markdennis22

descriptions/0/api.intercom.io.yaml

@@ -30899,12 +30899,13 @@ components:
         avatar:
           type: object
           nullable: true
-          description: The teammate's avatar image. Left out when the teammate has
-            neither an uploaded avatar nor a gravatar.
+          description: The teammate's avatar image. On List all admins it is only
+            included when `display_avatar` is `true`. Elsewhere it is left out when
+            the teammate has neither an uploaded avatar nor a gravatar.
           properties:
             type:
               type: string
-              description: Value is `avatar`. Returned on the admin endpoints only.
+              description: Value is `avatar`. Returned by List all admins only.
               example: avatar
             image_url:
               type: string

descriptions/2.17/api.intercom.io.yaml

@@ -26855,12 +26855,13 @@ components:
         avatar:
           type: object
           nullable: true
-          description: The teammate's avatar image. Left out when the teammate has
-            neither an uploaded avatar nor a gravatar.
+          description: The teammate's avatar image. On List all admins it is only
+            included when `display_avatar` is `true`. Elsewhere it is left out when
+            the teammate has neither an uploaded avatar nor a gravatar.
           properties:
             type:
               type: string
-              description: Value is `avatar`. Returned on the admin endpoints only.
+              description: Value is `avatar`. Returned by List all admins only.
               example: avatar
             image_url:
               type: string