build: use powershell for Electron build step (#49144)

.github/actions/build-electron/action.yml

@@ -45,6 +45,7 @@ runs:
       shell: bash
       run: echo "::add-matcher::src/electron/.github/problem-matchers/clang.json"
     - name: Build Electron ${{ inputs.step-suffix }}
+      if: ${{ inputs.target-platform != 'win' }}
       shell: bash
       run: |
         rm -rf "src/out/Default/Electron Framework.framework"
@@ -70,14 +71,37 @@ runs:
 
         # Upload build stats to Datadog
         if ! [ -z $DD_API_KEY ]; then
-          if [ "$TARGET_PLATFORM" = "win" ]; then
-            npx node electron/script/build-stats.mjs out/Default/siso.exe.INFO --upload-stats || true
-          else
-            npx node electron/script/build-stats.mjs out/Default/siso.INFO --upload-stats || true
-          fi
+          npx node electron/script/build-stats.mjs out/Default/siso.INFO --upload-stats || true          
         else
           echo "Skipping build-stats.mjs upload because DD_API_KEY is not set"
         fi
+    - name: Build Electron (Windows) ${{ inputs.step-suffix }}
+      if: ${{ inputs.target-platform == 'win' }}
+      shell: powershell
+      run: |
+        cd src\electron
+        git pack-refs
+        cd ..
+
+        $env:NINJA_SUMMARIZE_BUILD = 1
+        if ("${{ inputs.is-release }}" -eq "true") {          
+          e build --target electron:release_build
+        } else {
+          e build --target electron:testing_build
+        }
+        Copy-Item out\Default\.ninja_log out\electron_ninja_log
+        node electron\script\check-symlinks.js
+
+        # Upload build stats to Datadog
+        if ($env:DD_API_KEY) {
+          try {
+            npx node electron\script\build-stats.mjs out\Default\siso.exe.INFO --upload-stats
+          } catch {
+            Write-Host "Build stats upload failed, continuing..."
+          }
+        } else {
+          Write-Host "Skipping build-stats.mjs upload because DD_API_KEY is not set"
+        }
     - name: Verify dist.zip ${{ inputs.step-suffix }}
       shell: bash
       run: |