[DataProtectionBackup] Polish the API to prepare for release (Azure#33792)

* regen

* regen resources

* resolve comment

* update changelog

Author: Yao725

sdk/dataprotection/Azure.ResourceManager.DataProtectionBackup/CHANGELOG.md

@@ -11,7 +11,7 @@
 
 ### Other Changes
 
-- Changed API version from 2022-05-01 to 2023-01-01.
+- Upgraded API version to 2023-01-01.
 
 ## 1.0.0 (2022-11-04)
 

sdk/dataprotection/Azure.ResourceManager.DataProtectionBackup/api/Azure.ResourceManager.DataProtectionBackup.netstandard2.0.cs

@@ -27,7 +27,7 @@ public IList<DataStoreSettings> DataStoreParametersList
             get
             {
                 if (PolicyParameters is null)
-                    PolicyParameters = new PolicyParameters();
+                    PolicyParameters = new BackupInstancePolicySettings();
                 return PolicyParameters.DataStoreParametersList;
             }
         }

sdk/dataprotection/Azure.ResourceManager.DataProtectionBackup/src/Customized/Models/BackupInstancePolicyInfo.cs

@@ -25,15 +25,15 @@ public DataProtectionBackupPatch()
         /// <summary> Input Managed Identity Details. </summary>
         public ManagedServiceIdentity Identity { get; set; }
         /// <summary> Resource properties. </summary>
-        internal PatchBackupVaultInput Properties { get; set; }
+        internal DataProtectionBackupVaultPatchProperties Properties { get; set; }
         /// <summary> Gets or sets the alert settings for all job failures. </summary>
         public AzureMonitorAlertsState? AlertSettingsForAllJobFailures
         {
             get => Properties is null ? default : Properties.AlertSettingsForAllJobFailures;
             set
             {
                 if (Properties is null)
-                    Properties = new PatchBackupVaultInput();
+                    Properties = new DataProtectionBackupVaultPatchProperties();
                 Properties.AlertSettingsForAllJobFailures = value;
             }
         }