Update to WindowsAppSDK 1.3.230331000

Update Microsoft.Windows.SDK.BuildTools to 10.0.22621.756

Author: michael-hawker

MultiTarget/MultiTarget.props

@@ -45,7 +45,7 @@
 
   <ItemGroup>
     <PackageReference Condition="'$(TargetFramework)' == '$(UwpTargetFramework)'" Include="Microsoft.UI.Xaml" Version="2.7.0" />
-    <PackageReference Condition="'$(TargetFramework)' == '$(WinAppSdkTargetFramework)'" Include="Microsoft.WindowsAppSDK" Version="1.2.230118.102" />
+    <PackageReference Condition="'$(TargetFramework)' == '$(WinAppSdkTargetFramework)'" Include="Microsoft.WindowsAppSDK" Version="1.3.230331000" />
   </ItemGroup>
 
   <ItemGroup>

ProjectHeads/Head.WinAppSdk.props

@@ -15,8 +15,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.WindowsAppSDK" Version="1.2.230118.102" />
-    <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.22621.755" />
+    <PackageReference Include="Microsoft.WindowsAppSDK" Version="1.3.230331000" />
+    <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.22621.756" />
     <Manifest Include="$(ApplicationManifest)" />
   </ItemGroup>
 </Project>