Fix broken aspire-samples links (microsoft → Azure-Samples)

[Copilot]

The microsoft/aspire-samples repo was moved to Azure-Samples/aspire-samples, breaking all existing links with 404s.

Updated references across 5 files:

• README.md
• playground/README.md
• docs/area-owners.md
• src/Aspire.Hosting.JavaScript/README.md
• tools/ReleaseNotes/data/whats-new-93.md

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.dev issue:
      • New issue
  • No

Original prompt

---

This section details on the original issue you should resolve

<issue_title>azure-samples link broken in readme.md</issue_title>
<issue_description></issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes azure-samples link broken in readme.md #15462

---

💬 Send tasks to Copilot coding agent from Slack and Teams to turn conversations into code. Copilot posts an update in your thread when it's finished.