Cmdpal: Fix cmdpal toolkit restore failure for slnx in release pipeline (#44152)

<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
Error from pipeline: 

Invalid input 'PowerToys.slnx'. The file type was not recognized.
MSBuild version 17.14.23+b0019275e for .NET Framework
Build started 12/8/2025 6:33:14 AM.

Nuget support for slnx will be ready in nuget version 7, so use msbuild
to restore

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## PR Checklist

- [ ] Closes: #xxx
<!-- - [ ] Closes: #yyy (add separate lines for additional resolved
issues) -->
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

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or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments

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wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

<img width="606" height="681" alt="image"
src="https://github.com/user-attachments/assets/ca0486a7-0c07-4fad-a81e-b98767ea8005"
/>

.pipelines/ESRPSigning_core.json

@@ -353,6 +353,11 @@
                 "Microsoft.SemanticKernel.Connectors.Ollama.dll",
                 "OllamaSharp.dll",
 
+                "boost_regex-vc143-mt-gd-x32-1_87.dll",
+                "boost_regex-vc143-mt-gd-x64-1_87.dll",
+                "boost_regex-vc143-mt-x32-1_87.dll",
+                "boost_regex-vc143-mt-x64-1_87.dll",
+
                 "UnitsNet.dll",
                 "UtfUnknown.dll",
                 "Wpf.Ui.dll"

.pipelines/versionAndSignCheck.ps1

@@ -52,7 +52,12 @@ $nullVersionExceptions = @(
     "System.Diagnostics.EventLog.Messages.dll",
     "Microsoft.Windows.Widgets.dll",
     "AdaptiveCards.ObjectModel.WinUI3.dll",
-    "AdaptiveCards.Rendering.WinUI3.dll") -join '|';
+    "AdaptiveCards.Rendering.WinUI3.dll",
+    "boost_regex_vc143_mt_gd_x32_1_87.dll",
+    "boost_regex_vc143_mt_gd_x64_1_87.dll",
+    "boost_regex_vc143_mt_x32_1_87.dll",
+    "boost_regex_vc143_mt_x64_1_87.dll"
+    ) -join '|';
 $totalFailure = 0;
 
 Write-Host $DirPath;

src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions/Microsoft.CommandPalette.Extensions.vcxproj

@@ -4,7 +4,7 @@
     <PathToRoot>..\..\..\..\..\</PathToRoot>
     <WasdkNuget>$(PathToRoot)packages\Microsoft.WindowsAppSDK.1.8.250907003</WasdkNuget>
     <CppWinRTNuget>$(PathToRoot)packages\Microsoft.Windows.CppWinRT.2.0.240111.5</CppWinRTNuget>
-    <WindowsSdkBuildToolsNuget>$(PathToRoot)packages\Microsoft.Windows.SDK.BuildTools.10.0.26100.4188</WindowsSdkBuildToolsNuget>
+    <WindowsSdkBuildToolsNuget>$(PathToRoot)packages\Microsoft.Windows.SDK.BuildTools.10.0.26100.6901</WindowsSdkBuildToolsNuget>
     <WebView2Nuget>$(PathToRoot)packages\Microsoft.Web.WebView2.1.0.2903.40</WebView2Nuget>
   </PropertyGroup>
   <Import Project="$(WasdkNuget)\build\native\Microsoft.WindowsAppSDK.props" Condition="Exists('$(WasdkNuget)\build\native\Microsoft.WindowsAppSDK.props')" />

src/modules/cmdpal/extensionsdk/Microsoft.CommandPalette.Extensions/packages.config

@@ -12,6 +12,6 @@
   <package id="Microsoft.WindowsAppSDK.InteractiveExperiences" version="1.8.250906004" targetFramework="native" />
   <package id="Microsoft.WindowsAppSDK.Widgets" version="1.8.250904007" targetFramework="native" />
   <package id="Microsoft.WindowsAppSDK.AI" version="1.8.37" targetFramework="native" />
-  <package id="Microsoft.Windows.SDK.BuildTools" version="10.0.26100.4188" targetFramework="native" />
+  <package id="Microsoft.Windows.SDK.BuildTools" version="10.0.26100.6901" targetFramework="native" />
   <package id="Microsoft.Windows.SDK.BuildTools.MSIX" version="1.7.20250829.1" targetFramework="native" />
 </packages>

src/modules/cmdpal/extensionsdk/nuget/BuildSDKHelper.ps1

@@ -54,9 +54,15 @@ if ($IsAzurePipelineBuild) {
 } else {
   $nugetPath = (Join-Path $PSScriptRoot "NugetWrapper.cmd")
 }
+$solutionPath = (Join-Path $PSScriptRoot "..\..\..\..\..\PowerToys.slnx")
 
 if (($BuildStep -ieq "all") -Or ($BuildStep -ieq "build")) {
-  & $nugetPath restore (Join-Path $PSScriptRoot "..\..\..\..\..\PowerToys.slnx")
+  $restoreArgs = @(
+    $solutionPath
+    "/t:Restore"
+    "/p:RestorePackagesConfig=true"
+  )
+  & $msbuildPath $restoreArgs
 
   Try {
     foreach ($config in $Configuration.Split(",")) {