Bump OpenTelemetry.Instrumentation.Http

Bumps [OpenTelemetry.Instrumentation.Http](https://github.com/open-telemetry/opentelemetry-dotnet) from 1.0.0-rc9.8 to 1.8.1.
- [Release notes](https://github.com/open-telemetry/opentelemetry-dotnet/releases)
- [Commits](open-telemetry/opentelemetry-dotnet@1.0.0-rc9.8...Instrumentation.Http-1.8.1)

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

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

src/Services/Podcasts/Podcast.API/Podcast.API.csproj

@@ -39,7 +39,7 @@
 		<PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.0.0-rc9.8" />
 		<PackageReference Include="OpenTelemetry.Instrumentation.EventCounters" Version="1.0.0-alpha.1" />
 		<PackageReference Include="OpenTelemetry.Instrumentation.EntityFrameworkCore" Version="1.0.0-beta.3" />
-		<PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.0.0-rc9.8" />
+		<PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.8.1" />
 		<PackageReference Include="OpenTelemetry.Instrumentation.Process" Version="0.1.0-alpha.1" />
 		<PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.0.0" />
 		<PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />