[main] Source code updates from dotnet/dotnet (#66132)

* Backflow from https://github.com/dotnet/dotnet / 1a405c7 build 309188

[[ commit created by automation ]]

* Update dependencies from build 309188
Updated Dependencies:
Microsoft.NET.Runtime.WebAssembly.Sdk, Microsoft.NETCore.BrowserDebugHost.Transport, Microsoft.NET.Runtime.MonoAOTCompiler.Task, dotnet-ef, Microsoft.Bcl.AsyncInterfaces, Microsoft.Bcl.TimeProvider, Microsoft.EntityFrameworkCore, Microsoft.EntityFrameworkCore.Design, Microsoft.EntityFrameworkCore.InMemory, Microsoft.EntityFrameworkCore.Relational, Microsoft.EntityFrameworkCore.Sqlite, Microsoft.EntityFrameworkCore.SqlServer, Microsoft.EntityFrameworkCore.Tools, Microsoft.Extensions.Caching.Abstractions, Microsoft.Extensions.Caching.Memory, Microsoft.Extensions.Configuration, Microsoft.Extensions.Configuration.Abstractions, Microsoft.Extensions.Configuration.Binder, Microsoft.Extensions.Configuration.CommandLine, Microsoft.Extensions.Configuration.EnvironmentVariables, Microsoft.Extensions.Configuration.FileExtensions, Microsoft.Extensions.Configuration.Ini, Microsoft.Extensions.Configuration.Json, Microsoft.Extensions.Configuration.UserSecrets, Microsoft.Extensions.Configuration.Xml, Microsoft.Extensions.DependencyInjection, Microsoft.Extensions.DependencyInjection.Abstractions, Microsoft.Extensions.DependencyModel, Microsoft.Extensions.Diagnostics, Microsoft.Extensions.Diagnostics.Abstractions, Microsoft.Extensions.FileProviders.Abstractions, Microsoft.Extensions.FileProviders.Composite, Microsoft.Extensions.FileProviders.Physical, Microsoft.Extensions.FileSystemGlobbing, Microsoft.Extensions.HostFactoryResolver.Sources, Microsoft.Extensions.Hosting, Microsoft.Extensions.Hosting.Abstractions, Microsoft.Extensions.Http, Microsoft.Extensions.Logging, Microsoft.Extensions.Logging.Abstractions, Microsoft.Extensions.Logging.Configuration, Microsoft.Extensions.Logging.Console, Microsoft.Extensions.Logging.Debug, Microsoft.Extensions.Logging.EventLog, Microsoft.Extensions.Logging.EventSource, Microsoft.Extensions.Logging.TraceSource, Microsoft.Extensions.Options, Microsoft.Extensions.Options.ConfigurationExtensions, Microsoft.Extensions.Options.DataAnnotations, Microsoft.Extensions.Primitives, Microsoft.Internal.Runtime.AspNetCore.Transport, Microsoft.NETCore.App.Ref, Microsoft.NETCore.Platforms, System.Collections.Immutable, System.Composition, System.Configuration.ConfigurationManager, System.Diagnostics.DiagnosticSource, System.Diagnostics.EventLog, System.Diagnostics.PerformanceCounter, System.DirectoryServices.Protocols, System.Formats.Asn1, System.Formats.Cbor, System.IO.Hashing, System.IO.Pipelines, System.Memory.Data, System.Net.Http.Json, System.Net.Http.WinHttpHandler, System.Net.ServerSentEvents, System.Numerics.Tensors, System.Reflection.Metadata, System.Resources.Extensions, System.Runtime.Caching, System.Security.Cryptography.Pkcs, System.Security.Cryptography.Xml, System.Security.Permissions, System.ServiceProcess.ServiceController, System.Text.Encodings.Web, System.Text.Json, System.Threading.AccessControl, System.Threading.Channels, System.Threading.RateLimiting (Version 11.0.0-preview.4.26202.104 -> 11.0.0-preview.4.26203.108)
Microsoft.DotNet.Arcade.Sdk, Microsoft.DotNet.Build.Tasks.Archives, Microsoft.DotNet.Build.Tasks.Installers, Microsoft.DotNet.Build.Tasks.Templating, Microsoft.DotNet.Helix.Sdk, Microsoft.DotNet.RemoteExecutor, Microsoft.DotNet.SharedFramework.Sdk (Version 11.0.0-beta.26202.104 -> 11.0.0-beta.26203.108)
Microsoft.Web.Xdt (Version 3.3.0-preview.4.26202.104 -> 3.3.0-preview.4.26203.108)
NuGet.Frameworks, NuGet.Packaging, NuGet.Versioning (Version 7.6.0-rc.20304 -> 7.6.0-rc.20408)
[[ commit created by automation ]]

* Add new package source for dotnet-extensions

---------

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>
Co-authored-by: William Godbe <wigodbe@microsoft.com>

Author: dotnet-maestro[bot]

.azure/pipelines/ci.yml

@@ -708,9 +708,9 @@ extends:
             binlogPath: artifacts/log/Release/Build.binlog
             presteps:
             - task: NodeTool@0
-              displayName: Install Node 20.x
+              displayName: Install Node 24.x
               inputs:
-                versionSpec: 20.x
+                versionSpec: 24.x
             pool:
               name: $(DncEngInternalBuildPool)
               demands: ImageOverride -equals windows.vs2026preview.scout.amd64

.azure/pipelines/jobs/default-build.yml

@@ -179,9 +179,9 @@ jobs:
           displayName: Start background dump collection
       - ${{ if eq(parameters.installNodeJs, 'true') }}:
         - task: NodeTool@0
-          displayName: Install Node 20.x
+          displayName: Install Node 24.x
           inputs:
-            versionSpec: 20.x
+            versionSpec: 24.x
       - ${{ if and(eq(parameters.agentOs, 'Windows'), eq(parameters.isAzDOTestingJob, true)) }}:
         - powershell: |
             Write-Host "##vso[task.setvariable variable=SeleniumProcessTrackingFolder]$(Build.SourcesDirectory)\artifacts\tmp\selenium\"
@@ -413,9 +413,9 @@ jobs:
           displayName: Start background dump collection
       - ${{ if eq(parameters.installNodeJs, 'true') }}:
         - task: NodeTool@0
-          displayName: Install Node 20.x
+          displayName: Install Node 24.x
           inputs:
-            versionSpec: 20.x
+            versionSpec: 24.x
       - ${{ if eq(parameters.agentOs, 'Windows') }}:
         - powershell: Write-Host "##vso[task.prependpath]$(DOTNET_CLI_HOME)\.dotnet\tools"
           displayName: Add dotnet tools to path