feat: Automated regeneration of Content client (googleapis#13085)

Auto-created at 2025-03-04 13:19:45 +0000 using the toys pull request generator.

Author: yoshi-code-bot

clients/content/lib/google_api/content/v21/metadata.ex

@@ -20,7 +20,7 @@ defmodule GoogleApi.Content.V21 do
   API client metadata for GoogleApi.Content.V21.
   """
 
-  @discovery_revision "20250208"
+  @discovery_revision "20250301"
 
   def discovery_revision(), do: @discovery_revision
 end

clients/content/lib/google_api/content/v21/model/return_policy_online_return_reason_category_info.ex

@@ -21,7 +21,7 @@ defmodule GoogleApi.Content.V21.Model.ReturnPolicyOnlineReturnReasonCategoryInfo
 
   ## Attributes
 
-  *   `returnLabelSource` (*type:* `String.t`, *default:* `nil`) - The corresponding return label source.
+  *   `returnLabelSource` (*type:* `String.t`, *default:* `nil`) - The corresponding return label source. If the `ReturnMethod` field includes `BY_MAIL`, it is required to specify `ReturnLabelSource` for both `BUYER_REMORSE` and `ITEM_DEFECT` return reason categories.
   *   `returnReasonCategory` (*type:* `String.t`, *default:* `nil`) - The return reason category.
   *   `returnShippingFee` (*type:* `GoogleApi.Content.V21.Model.ReturnPolicyOnlineReturnShippingFee.t`, *default:* `nil`) - The corresponding return shipping fee. This is only applicable when returnLabelSource is not the customer's responsibility.
   """