Upgrade GitHub Actions runner images to windows-2025 and install Windows SDKs

.github/workflows/build.yml

@@ -32,7 +32,7 @@ env:
 jobs:
   # This workflow contains a single job called "Xaml-Style-Check"
   Xaml-Style-Check:
-    runs-on: windows-2022
+    runs-on: windows-2025
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
@@ -57,7 +57,7 @@ jobs:
   # Build both Uno.UI/WinUI2/UWP and Uno.WinUI/WinUI3/WindowsAppSDK versions of our packages using a matrix
   build:
     needs: [Xaml-Style-Check]
-    runs-on: windows-2022
+    runs-on: windows-2025-large
 
     env:
       PROCDUMP_PATH: ${{ github.workspace }}
@@ -125,6 +125,10 @@ jobs:
           --skip vswin
           --verbose
 
+      - name: Install Windows SDKs
+        shell: pwsh
+        run: ./tooling/Install-WindowsSdk.ps1
+
       - name: Add msbuild to PATH
         uses: microsoft/setup-msbuild@v2
         with:
@@ -218,7 +222,7 @@ jobs:
           dotnet-dump analyze ${{ steps.detect-dump.outputs.DUMP_FILE }} -c "clrstack" -c "pe -lines" -c "exit"
 
   package:
-    runs-on: windows-2022
+    runs-on: windows-2025-large
     needs: [build]
     strategy:
       fail-fast: false # prevent one matrix pipeline from being cancelled if one fails, we want them all to run to completion.
@@ -330,7 +334,7 @@ jobs:
   sign:
     needs: [package]
     if: ${{ github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/heads/rel/') }}
-    runs-on: windows-2022
+    runs-on: windows-2025-large
     permissions:
       id-token: write # Required for requesting the JWT