feat: Automated regeneration of Content client (googleapis#12835)

Auto-created at 2025-01-17 13:12:23 +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 "20241217"
+  @discovery_revision "20250115"
 
   def discovery_revision(), do: @discovery_revision
 end

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

@@ -22,7 +22,7 @@ defmodule GoogleApi.Content.V21.Model.AttributionSettings do
   ## Attributes
 
   *   `attributionLookbackWindowInDays` (*type:* `integer()`, *default:* `nil`) - Required. Lookback windows (in days) used for attribution in this source. Supported values are 7, 30, 40.
-  *   `attributionModel` (*type:* `String.t`, *default:* `nil`) - Required. Attribution model.
+  *   `attributionModel` (*type:* `String.t`, *default:* `nil`) - 
   *   `conversionType` (*type:* `list(GoogleApi.Content.V21.Model.AttributionSettingsConversionType.t)`, *default:* `nil`) - Immutable. Unordered list. List of different conversion types a conversion event can be classified as. A standard "purchase" type will be automatically created if this list is empty at creation time.
   """