Update with Privacy feedback (#18485)

Inform customers snapshot moves their data outside of geo

Author: lucia-msft

specification/cognitiveservices/data-plane/Face/stable/v1.0/Face.json

@@ -4125,7 +4125,7 @@
         "createdTime",
         "lastUpdateTime"
       ],
-      "description": "Snapshot object.",
+      "description": "Snapshot object. The Snapshot API will move your data outside the geo you select for your resource to West US, West Europe and Southeast Asia.",
       "properties": {
         "id": {
           "type": "string",