[master] Update branch for release

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Pull request overview

This PR is an automated dependency/SDK refresh on master to align the repo with a newer .NET SDK preview and associated package version updates across build/test projects and compliance manifests.

Changes:

• Update .NET SDK version to 11.0.100-preview.6.26359.118 (and corresponding runtime metadata + changelog entry).
• Bump multiple NuGet package versions across product and test .csproj files.
• Refresh tools/cgmanifest/main/cgmanifest.json component versions and reorder $schema.

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tools/cgmanifest/main/cgmanifest.json	Updates component registration versions and moves $schema to the end of the file.
test/xUnit/xUnit.tests.csproj	Bumps Microsoft.NET.Test.Sdk version for test execution.
test/tools/WebListener/WebListener.csproj	Bumps Microsoft.AspNetCore.Mvc.NewtonsoftJson preview version.
test/perf/dotnet-tools/ResultsComparer/ResultsComparer.csproj	Bumps Perfolizer version for perf tooling.
test/fuzzing/FuzzingApp/powershell-fuzz-tests.csproj	Minor formatting + bumps SharpFuzz version.
src/System.Management.Automation/System.Management.Automation.csproj	Bumps several 11.0.0-preview.* package references.
src/System.Management.Automation/SourceGenerators/PSVersionInfoGenerator/PSVersionInfoGenerator.csproj	Bumps Roslyn packages (Microsoft.CodeAnalysis.*) to 5.6.0.
src/Microsoft.WSMan.Management/Microsoft.WSMan.Management.csproj	Bumps System.ServiceProcess.ServiceController preview version.
src/Microsoft.PowerShell.SDK/Microsoft.PowerShell.SDK.csproj	Bumps pinned dependency versions to newer preview versions.
src/Microsoft.PowerShell.CoreCLR.Eventing/Microsoft.PowerShell.CoreCLR.Eventing.csproj	Bumps System.Diagnostics.EventLog preview version.
src/Microsoft.PowerShell.Commands.Utility/Microsoft.PowerShell.Commands.Utility.csproj	Bumps Markdig.Signed, Microsoft.CodeAnalysis.CSharp, and System.Drawing.Common.
src/Microsoft.PowerShell.Commands.Management/Microsoft.PowerShell.Commands.Management.csproj	Bumps System.ServiceProcess.ServiceController preview version.
src/Microsoft.PowerShell.Commands.Diagnostics/Microsoft.PowerShell.Commands.Diagnostics.csproj	Bumps System.Diagnostics.PerformanceCounter preview version.
global.json	Updates pinned .NET SDK version to preview.6.
DotnetRuntimeMetadata.json	Updates sdkImageVersion to match the new SDK.
CHANGELOG/v7.7/dependencychanges.json	Adds a dependency change entry documenting the .NET SDK update.