feat: Automated regeneration of Content client (#13303)

Auto-created at 2025-04-10 13:15:09 +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 "20250301"
+  @discovery_revision "20250408"
 
   def discovery_revision(), do: @discovery_revision
 end

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

@@ -17,7 +17,7 @@
 
 defmodule GoogleApi.Content.V21.Model.Product do
   @moduledoc """
-   Required product attributes are primarily defined by the product data specification. See the Product Data Specification Help Center article for information. Product data. After inserting, updating, or deleting a product, it may take several minutes before changes take effect.
+   Required product attributes are primarily defined by the product data specification. See the Product Data Specification Help Center article for information. Product data. After inserting, updating, or deleting a product, it may take several minutes before changes take effect. The following reference documentation lists the field names in the **camelCase** casing style while the Products Data Specification lists the names in the **snake_case** casing style.
 
   ## Attributes