Bump OpenTelemetry.Instrumentation.Http in /burstsvc/burst

Bumps [OpenTelemetry.Instrumentation.Http](https://github.com/open-telemetry/opentelemetry-dotnet) from 1.0.0-rc9.3 to 1.8.1.
- [Release notes](https://github.com/open-telemetry/opentelemetry-dotnet/releases)
- [Commits](open-telemetry/opentelemetry-dotnet@1.0.0-rc9.3...Instrumentation.Http-1.8.1)

---
updated-dependencies:
- dependency-name: OpenTelemetry.Instrumentation.Http
  dependency-type: direct:production
...

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

burstsvc/burst/Ngsa.BurstService.csproj

@@ -51,7 +51,7 @@
     <PackageReference Include="OpenTelemetry.Exporter.Console" Version="1.3.0-beta.1" />
     <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.0.0-rc9.3" />
     <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.0.0-rc9.3" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.0.0-rc9.3" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.8.1" />
     <PackageReference Include="prometheus-net.AspNetCore" Version="6.0.0" />
     <PackageReference Include="System.CommandLine" Version="2.0.0-beta1.20574.7" />
     <PackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="6.0.0">