Bump ServiceStack.Text.Core from 5.8.0 to 5.9.0

Bumps [ServiceStack.Text.Core](https://github.com/ServiceStack/ServiceStack.Text) from 5.8.0 to 5.9.0.
- [Release notes](https://github.com/ServiceStack/ServiceStack.Text/releases)
- [Commits](https://github.com/ServiceStack/ServiceStack.Text/compare/v5.8...v5.9)

Signed-off-by: dependabot[bot] <support@github.com>

Emby.Server.Implementations/Emby.Server.Implementations.csproj

@@ -40,7 +40,7 @@
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="3.1.4" />
     <PackageReference Include="Mono.Nat" Version="2.0.1" />
     <PackageReference Include="prometheus-net.DotNetRuntime" Version="3.3.1" />
-    <PackageReference Include="ServiceStack.Text.Core" Version="5.8.0" />
+    <PackageReference Include="ServiceStack.Text.Core" Version="5.9.0" />
     <PackageReference Include="sharpcompress" Version="0.25.0" />
     <PackageReference Include="SQLitePCL.pretty.netstandard" Version="2.1.0" />
     <PackageReference Include="DotNet.Glob" Version="3.0.9" />