bump version of Azure.Provisioning

[ArcturusZhang]

Description

This PR bumps version of Azure.Provisioning to 1.2.1, and version of Azure.Core to 1.47.0

Fixes Azure/azure-sdk-for-net#51135

Checklist

• Is this feature complete?
  • Yes. Ready to ship.
  • No. Follow-up changes expected.
• Are you including unit tests for the changes and scenario tests if relevant?
  • Yes
  • No
• Did you add public API?
  • Yes
    • If yes, did you have an API Review for it?
      • Yes
      • No
    • Did you add <remarks /> and <code /> elements on your triple slash comments?
      • Yes
      • No
  • No
• Does the change make any security assumptions or guarantees?
  • Yes
    • If yes, have you done a threat model and had a security review?
      • Yes
      • No
  • No
• Does the change require an update in our Aspire docs?
  • Yes
    • Link to aspire-docs issue (consider using one of the following templates):
      • New (or update) doc-idea template
      • New breaking-change template
      • New diagnostic template
  • No

[Copilot]

Pull Request Overview

This PR updates package versions to incorporate the latest patch and dependency releases.

• Bumps Azure.Provisioning from 1.2.0 to 1.2.1
• Bumps Azure.Core from 1.46.2 to 1.47.0

[eerhardt]

/backport to release/9.4

[github-actions]

Started backporting to release/9.4: https://github.com/dotnet/aspire/actions/runs/16270312929