[6.1] Fix project dependencies

[cheenamalhotra]

No description provided.

[Copilot]

Pull Request Overview

This PR addresses missing project dependencies by adding explicit references to Azure.Core and other required packages across all SqlClient project files and configurations. The changes ensure proper dependency management for both .NET Framework and .NET Core implementations.

Key changes:

• Adds Azure.Core as an explicit dependency across all target frameworks
• Consolidates System.Configuration.ConfigurationManager references to apply to all frameworks
• Adds missing package references for Microsoft.Extensions.Caching.Memory and Microsoft.IdentityModel packages

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tools/specs/Microsoft.Data.SqlClient.nuspec	Adds Azure.Core 1.47.1 dependency to all target framework groups
src/Microsoft.Data.SqlClient/src/Microsoft.Data.SqlClient.csproj	Consolidates package references and adds missing dependencies for all frameworks
src/Microsoft.Data.SqlClient/netfx/src/Microsoft.Data.SqlClient.csproj	Adds Azure.Core package reference for .NET Framework implementation
src/Microsoft.Data.SqlClient/netfx/ref/Microsoft.Data.SqlClient.csproj	Adds Azure.Core package reference for .NET Framework reference assembly
src/Microsoft.Data.SqlClient/netcore/src/Microsoft.Data.SqlClient.csproj	Adds Azure.Core package reference for .NET Core implementation
src/Microsoft.Data.SqlClient/netcore/ref/Microsoft.Data.SqlClient.csproj	Adds Azure.Core package reference for .NET Core reference assembly

---

_{You can also share your feedback on Copilot code review for a chance to win a $100 gift card. Take the survey.}