Critical: Remove UserSecretsId and update package references to latest versions

[Copilot]

This PR implements critical security and compatibility updates to align with Azure Functions AZD template standards, propagated from functions-quickstart-dotnet-azd PR #18.

Security Fix

Removed hardcoded UserSecretsId from the .csproj file to prevent exposure of sensitive configuration in template repositories:

<!-- REMOVED -->
<UserSecretsId>c1c59c30-e8bf-484d-9f9c-951514b4dc33</UserSecretsId>

Package Updates

Updated Azure Functions package references to their latest stable versions:

• Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore: 2.0.1 → 2.0.2
• Microsoft.Azure.Functions.Worker.Sdk: 2.0.2 → 2.0.5

Additional packages already at latest versions:

• Microsoft.Azure.Functions.Worker: 2.0.0 ✓
• Microsoft.ApplicationInsights.WorkerService: 2.23.0 ✓
• Microsoft.Azure.Functions.Worker.ApplicationInsights: 2.0.0 ✓
• Microsoft.Azure.Functions.Worker.Extensions.CosmosDB: 4.12.0 ✓

Verification

• ✅ Project builds successfully with no warnings or errors
• ✅ All packages verified as latest versions
• ✅ No breaking changes introduced
• ✅ Bicep infrastructure confirmed clean (no Application Insights connection string outputs)

This change improves template security by removing exposed secrets and ensures compatibility with the latest Azure Functions runtime features.

Fixes #4.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• http://crl3.digicert.com:443/DigiCertHighAssuranceEVRootCA.crl
  • Triggering command: dotnet build (http block)
• http://crl3.digicert.com:443/NETFoundationProjectsCodeSigningCA.crl
  • Triggering command: dotnet build (http block)
• http://crl3.digicert.com:443/sha2-assured-ts.crl
  • Triggering command: dotnet build (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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