[Update] Leader Election

[v-federicoar]

Summary

This PR updates the leader-election sample so it runs reliably with the current toolchain and provides clear local emulator guidance.

What Changed

• Updated project dependency references in the leader-election projects to a compatible modern set.
• Improved the local Azurite setup documentation for HTTPS-based authentication flow.
• Documented emulator startup options to avoid local API-version mismatches.

Validation

End-to-end validation was executed for the leader-election flow:

• Build the solution successfully.
• Start local Azurite with HTTPS configuration.
• Run the worker process from WSL.
• Verify leader election behavior by running multiple worker instances and observing lease acquisition/retry output.

[Copilot]

Pull request overview

This PR updates the leader-election sample to work reliably with the current Azure SDK toolchain and provides clearer local Azurite emulator setup guidance. The changes are straightforward: bumping Azure.Identity from 1.17.1 to 1.21.0 in both projects, and replacing the terse Azurite instructions with step-by-step HTTPS certificate setup and startup commands.

Changes:

• Bumped Azure.Identity to version 1.21.0 in both DistributedMutex and LeaderElectionConsoleWorker project files.
• Rewrote the Azurite local emulator setup section in Readme.md with detailed HTTPS certificate generation, trust, and startup instructions.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
leader-election/Readme.md	Expanded Azurite setup documentation with step-by-step certificate generation, trust, and HTTPS/OAuth startup commands
leader-election/LeaderElectionConsoleWorker/LeaderElectionConsoleWorker.csproj	Bumped Azure.Identity from 1.17.1 to 1.21.0
leader-election/DistributedMutex/DistributedMutex.csproj	Bumped Azure.Identity from 1.17.1 to 1.21.0

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.