Update package versions and TFM defaults to latest stable releases

[Copilot]

Updates all referenced NuGet packages to their latest stable versions and modernizes default TFM platform versions.

Package Updates

• Microsoft.NETCore.UniversalWindowsPlatform: 6.2.12 → 6.2.14
• Tizen.NET: 8.0.0.15631 → 13.0.0.19198
• Microsoft.NETFramework.ReferenceAssemblies: 1.0.2 → 1.0.3
• Microsoft.SourceLink.GitHub: 1.1.1 → 8.0.0
• Nerdbank.GitVersioning: 3.4.244 → 3.8.118

TFM Defaults

• UWP TargetPlatformVersion: 10.0.17763.0 → 10.0.22621.0 (Windows 11 22H2)
• UWP TargetPlatformMinVersion: 10.0.15063.0 → 10.0.17763.0 (Windows 10 1809)
• README examples updated to reflect current TFMs (net462, uap10.0.22621, tizen13.0)

Security

No vulnerabilities detected in updated packages.

Original prompt

You are an expert in MSBuild and writing targets/props files. Make sure any referenced packages are at their latest versions and that all current tfms are supported

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💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[vb2ae]

@clairernovotny is there anything I can do to help?