This change updates the costmanagement API to version 2023-08-01, ensuring
compatibility with both the public Azure Cloud and AzureChinaCloud. It's
important to note that AzureChinaCloud has specific API version requirements,
and version 2023-08-01 meets these.

In addition, the `azurerm_cost_anomaly_alert` resource now includes a new
optional parameter, `email_address_sender`, introduced in this API version.
Should this parameter be omitted, the the TF provider will default to using the
first email address listed in `email_addresses`, aligning with the default
behavior observed in the Azure Portal.

The ScheduledActionsClient_v2022_10_01, which previously existed alongside the
ScheduledActionsClient, has been discontinued. This is because the API version
2023-08-01 seems to be compatible with all uses.