Setting current activity status.

[RohitRanjanMS]

Issue describing the changes in this PR

Azure Function Apps when using the Service Bus trigger or output binding. In certain scenarios, if the function execution encounters an error, the associated request is still reported as successful in telemetry and monitoring systems. As a result, failures may be hidden from logs, dashboards, or alerting pipelines, leading to inaccurate success rates and potentially masking operational issues.

resolves #11314

Pull request checklist

IMPORTANT: Currently, changes must be backported to the in-proc branch to be included in Core Tools and non-Flex deployments.

• Backporting to the in-proc branch is not required
  • Otherwise: Link to backporting PR
• My changes do not require documentation changes
  • Otherwise: Documentation issue linked to PR
• My changes should not be added to the release notes for the next release
  • Otherwise: I've added my notes to release_notes.md
• My changes do not need to be backported to a previous version
  • Otherwise: Backport tracked by issue/PR #issue_or_pr
• My changes do not require diagnostic events changes
  • Otherwise: I have added/updated all related diagnostic events and their documentation (Documentation issue linked to PR)
• I have added all required tests (Unit tests, E2E tests)

Additional information

Additional PR information

[Copilot]

Pull Request Overview

This PR fixes a telemetry issue where Azure Function Apps with Service Bus triggers/outputs were incorrectly reporting failed invocations as successful. The fix ensures that Activity status is properly set to Error when function invocations fail.

• Moves activity status setting from the logging layer to the invocation response layer
• Adds proper execution context restoration to maintain AsyncLocal state flow
• Includes comprehensive test coverage for the failure scenario

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/WebJobs.Script.Grpc/Channel/GrpcWorkerChannel.cs	Implements the core fix by adding SetCurrentActivityStatus method and calling it during failed invocations
test/WebJobs.Script.Tests/Workers/Rpc/GrpcWorkerChannelTests.cs	Adds test coverage to verify activity status is set to Error on invocation failures
release_notes.md	Documents the change in release notes

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[brettsam]

just a couple small comments