Bump System.Text.Json from 8.0.4 to 9.0.0

Bumps [System.Text.Json](https://github.com/dotnet/runtime) from 8.0.4 to 9.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v8.0.4...v9.0.0)

---
updated-dependencies:
- dependency-name: System.Text.Json
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

src/Yoh.Text.Json.NamingPolicies.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
-     <PackageReference Include="System.Text.Json" Version="8.0.4" />
+     <PackageReference Include="System.Text.Json" Version="9.0.0" />
   </ItemGroup>
   <ItemGroup>
      <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All"/>