Add SerilogExpressions reference (#14438)

Directory.Packages.props

@@ -62,6 +62,7 @@
     <PackageVersion Include="Polly" Version="8.6.1" />
     <PackageVersion Include="Serilog.AspNetCore" Version="9.0.0" />
     <PackageVersion Include="Serilog.Enrichers.Thread" Version="4.0.0" />
+    <PackageVersion Include="Serilog.Expressions" Version="5.0.0" />
     <PackageVersion Include="Serilog.Settings.Configuration" Version="9.0.0" />
     <PackageVersion Include="Serilog.Sinks.Async" Version="2.1.0" />
     <PackageVersion Include="Serilog.Sinks.Console" Version="6.0.0" />

Jellyfin.Server/Jellyfin.Server.csproj

@@ -53,6 +53,7 @@
     <PackageReference Include="prometheus-net.AspNetCore" />
     <PackageReference Include="Serilog.AspNetCore" />
     <PackageReference Include="Serilog.Enrichers.Thread" />
+    <PackageReference Include="Serilog.Expressions" />
     <PackageReference Include="Serilog.Settings.Configuration" />
     <PackageReference Include="Serilog.Sinks.Async" />
     <PackageReference Include="Serilog.Sinks.Console" />