Set TargetLatestRuntimePatch to false to prevent automatic framework version increases

[OneBlue]

Summary of the Pull Request

This should prevent future build breaks when nuget packages are updated

PR Checklist

• Closes: Link to issue #xxx
• Communication: I've discussed this with core contributors already. If work hasn't been agreed, this work might be rejected
• Tests: Added/updated if needed and all pass
• Localization: All end user facing strings can be localized
• Dev docs: Added/updated if needed
• Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

Validation Steps Performed

[Copilot]

Pull Request Overview

This PR adds NuGet package lock files for the wslsettings target to prevent automatic version increases that could cause build breaks. The change implements package locking by enabling NuGet package restoration with lock files and creates platform-specific lock files to pin dependency versions.

• Enables NuGet package lock file restoration in the build system
• Creates platform-specific package lock files (x64, arm64, and generic) for wslsettings
• Locks all NuGet package dependencies to specific versions to prevent automatic updates

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
Directory.Build.Props	Enables NuGet lock file restoration and sets platform-specific lock file paths
packages.lock.json	Generic package lock file with all dependency versions pinned
packages.lock.arm64.json	ARM64-specific package lock file
packages.lock.x64.json	x64-specific package lock file with additional runtime dependencies