Bump Serilog.Sinks.Async from 1.4.0 to 1.5.0

Bumps [Serilog.Sinks.Async](https://github.com/serilog/serilog-sinks-async) from 1.4.0 to 1.5.0.
- [Release notes](https://github.com/serilog/serilog-sinks-async/releases)
- [Commits](https://github.com/serilog/serilog-sinks-async/compare/v1.4.0...v1.5.0)

---
updated-dependencies:
- dependency-name: Serilog.Sinks.Async
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Jellyfin.Server/Jellyfin.Server.csproj

@@ -45,7 +45,7 @@
     <PackageReference Include="Serilog.AspNetCore" Version="4.1.0" />
     <PackageReference Include="Serilog.Enrichers.Thread" Version="3.1.0" />
     <PackageReference Include="Serilog.Settings.Configuration" Version="3.1.0" />
-    <PackageReference Include="Serilog.Sinks.Async" Version="1.4.0" />
+    <PackageReference Include="Serilog.Sinks.Async" Version="1.5.0" />
     <PackageReference Include="Serilog.Sinks.Console" Version="3.1.1" />
     <PackageReference Include="Serilog.Sinks.File" Version="4.1.0" />
     <PackageReference Include="Serilog.Sinks.Graylog" Version="2.2.2" />