Remove pinned Azure packages

[Charles-Gagnon]

Description

We had pinned Azure.Core and Azure.Identity to resolve a CVE in the Azure.Identity package <1.11.4, but after looking into it that doesn't seem to be necessary since the version of SqlClient we use already requires that to be >=1.11.4

https://www.nuget.org/packages/Microsoft.Data.SqlClient/5.2.2#dependencies-body-tab

So having these direct dependencies is just adding unnecessary requirements on our package since we don't actually reference these directly.

Code Changes

• Unit tests are added, if possible
• Integration tests are added if the change is modifying existing behavior of one or more of the bindings
• New or changed code follows the C# style guidelines defined in .editorconfig
• All changes MUST be backwards compatible and changes to the shared az_func.GlobalState table must be compatible with all prior versions of the extension
• Use the ILogger instance to log relevant information, especially information useful for debugging or troubleshooting
• Use async and await for all long-running operations
• Ensure proper usage and propagation of CancellationToken
• T-SQL is safe from SQL Injection attacks through the use of SqlParameters and proper escaping/sanitization of input

Dependencies

• If updating dependencies, run dotnet restore --force-evaluate to update the lock files and ensure that there are NO major versions updates in either src/packages.lock.json or Worker.Extensions.Sql/src/packages.lock.json. If there are, contact the dev team for instructions.

Documentation

• Add samples if the change is modifying or adding functionality
• Update relevant documentation in the docs