build(deps): bump System.Text.Encodings.Web and System.Text.Json

Bumps [System.Text.Encodings.Web](https://github.com/dotnet/runtime) and [System.Text.Json](https://github.com/dotnet/runtime). These dependencies needed to be updated together.

Updates `System.Text.Encodings.Web` from 8.0.0 to 9.0.1
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v8.0.0...v9.0.1)

Updates `System.Text.Json` from 8.0.5 to 9.0.1
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v8.0.5...v9.0.1)

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

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

csharp/AppEncryption/AppEncryption/AppEncryption.csproj

@@ -30,8 +30,8 @@
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="App.Metrics" Version="4.3.0" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="all" />
-    <PackageReference Include="System.Text.Encodings.Web" Version="8.0.0" />
-    <PackageReference Include="System.Text.Json" Version="8.0.5" />
+    <PackageReference Include="System.Text.Encodings.Web" Version="9.0.1" />
+    <PackageReference Include="System.Text.Json" Version="9.0.1" />
   </ItemGroup>
   <ItemGroup Label="Project References">
     <ProjectReference Include="../Crypto/Crypto.csproj" />