nuget: upd System.Text.Json from 8.0.4 to 8.0.5

To address the potential security issue of 8.0.4.

Author: knocte

Directory.Packages.props

@@ -11,7 +11,7 @@
     <PackageVersion Include="Giraffe" Version="3.1.0" />
     <PackageVersion Include="Giraffe.Razor" Version="1.3.0" />
     <PackageVersion Include="Microsoft.AspNetCore.WebSockets" Version="2.1.1" />
-    <PackageVersion Include="System.Text.Json" Version="8.0.4" />
+    <PackageVersion Include="System.Text.Json" Version="8.0.5" />
     <PackageVersion Include="TaskBuilder.fs" Version="2.1.0" />
     <PackageVersion Include="FSharp.Core" Version="8.0.101" />
     <PackageVersion Include="Grpc.AspNetCore" Version="2.40.0" />