Bump System.Text.Json from 8.0.4 to 8.0.5 in /src/FluentRest.Fake

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
...

Signed-off-by: dependabot[bot] <[email protected]>

src/FluentRest.Fake/FluentRest.Fake.csproj

@@ -4,7 +4,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Text.Json" Version="8.0.4" />
+    <PackageReference Include="System.Text.Json" Version="8.0.5" />
   </ItemGroup>
 
 </Project>