DataDog/dd-trace-dotnet v2.9.0 on GitHub

Summary

This version mainly contains Tracer bug fixes:

Avoid a Stackoverflow exception in the context of ci-app or Azure functions when using different versions of the Tracer for automatic and custom instrumentation
Fix the order of precedence of the parameters to connect to the Trace agent.

[Tracer] Fix precedence in ExporterSettings (#2737)
Call get_Instance instead of GetDistributedTracer in case of version mismatch (#2767)
Don't check agent connectivity when tracing is disabled (#2772)
Fix number of spans in telemetry tests (#2786)
Throw ArgumentNullException when trying to set Tracer.Instance to null (#2437)
Instrument custom methods using New Relic attributes (#2780)

[CiApp] - Avoid setting env:none if not environment variable has been set (#2783)

[Profiler] Remove classes/files part of the old pipeline (#2750)
[Profiler] build profiler linux in AzDo (#2761)
[Profiler] Rename pid tag into process id (#2789)
[Profiler] Rename tests apps with "Samples." prefix instead of "Datadog.Demos." (#2788)

[Release] Trigger AAS release automatically (#2721)
Stop building 1.x branch daily (#2732)
Monitor the pipeline from a final stage (#2746)
[Build] Don't build twice docker image in ITests (#2760)
Split benchmarks between 6 different agents (#2763)
Fix all sample package versions and UpdateVersion task (#2766)
Remove timeouts from .NET install and add default timeout (#2768)
Write integration test logs directly to build_data directory (#2773)
Refactor Windows Integration tests (#2779)
Use the same .NET SDK version in GitHub Actions as we do in Azure Devops (#2781)
Improve git checkout to handle rebases on Benchmark VMs (#2782)
Run git clean -ffdx in checkout code (#2785)
Add missing GraphQL 5 tests (#2757)