Update OpenTelemetry packages

[bart-vmware]

Description

Updates Steeltoe to depend on stable OpenTelemetry packages, where available. Fixes broken build.

• EnableGrpcAspNetCoreSupport was replaced by environment variable OTEL_DOTNET_EXPERIMENTAL_ASPNETCORE_ENABLE_GRPC_INSTRUMENTATION, see https://github.com/open-telemetry/opentelemetry-dotnet/blob/main/test/OpenTelemetry.Instrumentation.Grpc.Tests/GrpcTests.server.cs
• Replace usage of IDeferredTracerProviderBuilder, see Pass the IServiceProvider in ConfigureResource, WithTracing & WithMetrics open-telemetry/opentelemetry-dotnet#4228

Quality checklist

• Your code complies with our Coding Style.
• You've updated unit and/or integration tests for your change, where applicable.
• You've updated documentation for your change, where applicable.
  If your change affects other repositories, such as Documentation, Samples and/or MainSite, add linked PRs here.
• There's an open issue for the PR that you are making. If you'd like to propose a new feature or change, please open an issue to discuss the change or find an existing issue.
• You've added required license files and/or file headers (explaining where the code came from with proper attribution), where code is copied from StackOverflow, a blog, or OSS.

[bart-vmware]

/azp run Steeltoe.All

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[TimHess]

One extremely minor suggestion, otherwise LGTM for current scope.