chore(deps): bump Serilog.Sinks.OpenTelemetry (#201)

Bumps [Serilog.Sinks.OpenTelemetry](https://github.com/serilog/serilog-sinks-opentelemetry) from 1.0.0-dev-00128 to 1.0.0-dev-00129.
- [Release notes](https://github.com/serilog/serilog-sinks-opentelemetry/releases)
- [Commits](https://github.com/serilog/serilog-sinks-opentelemetry/commits)

---
updated-dependencies:
- dependency-name: Serilog.Sinks.OpenTelemetry
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

libs/core/dotnet/serilog/OpenSystem.Core.Serilog.csproj

@@ -21,7 +21,7 @@
     <PackageReference Include="Serilog.Sinks.Async" Version="1.5.0" />
     <PackageReference Include="Serilog.Sinks.Console" Version="4.1.1-dev-00910" />
     <PackageReference Include="Serilog.Sinks.File" Version="5.0.0" />
-    <PackageReference Include="Serilog.Sinks.OpenTelemetry" Version="1.0.0-dev-00128" />
+    <PackageReference Include="Serilog.Sinks.OpenTelemetry" Version="1.0.0-dev-00129" />
   </ItemGroup>
 
   <ItemGroup>