chore: Bump Umbraco.Cms from 16.2.0 to 16.3.1 (#16)

Author: dependabot[bot]

src/UmbracoWeb/UmbracoWeb/UmbracoWeb.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Umbraco.Cms" Version="16.2.0" />
+    <PackageReference Include="Umbraco.Cms" Version="16.3.1" />
     <PackageReference Include="Microsoft.Data.SqlClient" Version="6.1.1" />
     <PackageReference Include="Serilog.Extensions.Logging" Version="9.0.2" />
     <PackageReference Include="Serilog.Sinks.File" Version="7.0.0" />