Update "Agents by Platforms" list to reflect current agent creation platforms

[fizamusthafa]

Summary

Updates the Agent Analytics > Agents by Platforms list in microsoft-365/admin/manage/agent-365-overview.md to reflect current agent creation platforms.

Replaced

• Copilot Studio (Full/Lite).
• Azure AI Foundry.
• Any external partner platforms.

With

• M365 Copilot Agent Builder.
• M365 Agents Toolkit.
• Copilot Studio.
• Microsoft Foundry. (Formerly Azure AI Foundry)
• Any external partner platforms.

Why

• Adds missing platforms: M365 Copilot Agent Builder and M365 Agents Toolkit.
• Reflects rebrand from Azure AI Foundry to Microsoft Foundry.
• Copilot Studio Lite has been renamed again to M365 Agent Builder. Copilot Studio is the previous Copilot Studio (Full)

[learn-build-service-prod]

Learn Build status updates of commit ce12232:

✅ Validation status: passed

File	Status	Preview URL	Details
microsoft-365/admin/manage/agent-365-overview.md	✅Succeeded

For more details, please refer to the build report.