Bump System.Text.Json from 8.0.4 to 8.0.5 in /src/NATS.Client.Core (#649)

Bumps [System.Text.Json](https://github.com/dotnet/runtime) from 8.0.4 to 8.0.5.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v8.0.4...v8.0.5)

---
updated-dependencies:
- dependency-name: System.Text.Json
  dependency-type: direct:production
...

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Author: dependabot[bot]

src/NATS.Client.Core/NATS.Client.Core.csproj

@@ -38,7 +38,7 @@
 
     <!--  Dependencies for netstandard only  -->
     <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' OR '$(TargetFramework)' == 'netstandard2.1'">
-        <PackageReference Include="System.Text.Json" Version="8.0.4"/>
+        <PackageReference Include="System.Text.Json" Version="8.0.5"/>
         <PackageReference Include="System.Threading.Channels" Version="8.0.0"/>
         <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="8.0.1"/>
         <PackageReference Include="Nullable" Version="1.3.1">
@@ -59,7 +59,7 @@
 
     <!--  Dependencies for net6.0 and net8.0 only -->
     <ItemGroup Condition="'$(TargetFramework)' == 'net6.0' OR '$(TargetFramework)' == 'net8.0'">
-        <PackageReference Include="System.Text.Json" Version="8.0.4"/>
+        <PackageReference Include="System.Text.Json" Version="8.0.5"/>
     </ItemGroup>
 
     <ItemGroup>