[main] Update dependencies from dotnet/arcade

[dotnet-maestro[bot]]

This pull request updates the following dependencies

From https://github.com/dotnet/arcade

• Subscription: bdb8cb4e-2ffe-4582-9198-f84c1543e95a
• Build: 20260112.1 (296887)
• Date Produced: January 12, 2026 12:21:22 PM UTC
• Commit: 594f3bcba9361908a75c769c1d2d5668facc0dea
• Branch: main

• Dependency Updates:
  • From 11.0.0-beta.25626.7 to 11.0.0-beta.26062.1
    • Microsoft.DotNet.Arcade.Sdk

• Updates to .NET SDKs:
  • Updates sdk.version to 11.0.100-alpha.1.25618.104
  • Updates tools.dotnet to 11.0.100-alpha.1.25618.104