fix(ci): make WiX Toolset setup resilient on Windows runners (#73)

.github/workflows/publish.yaml

@@ -54,9 +54,19 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y fakeroot rpm libsecret-1-dev pkg-config
 
-      - name: Install WiX Toolset
+      - name: Ensure WiX Toolset
         if: matrix.platform == 'win32' && matrix.arch == 'x64'
-        run: choco install wixtoolset --version=3.14.0 -y
+        shell: powershell
+        run: |
+          $installed = choco list --local-only wixtoolset --exact --limit-output
+          if (-not $installed) {
+            choco install wixtoolset --version=3.14.0 -y
+          } elseif ($installed -match '^wixtoolset\|3\.14(\.|$)') {
+            Write-Host "WiX Toolset already compatible: $installed"
+          } else {
+            Write-Host "Incompatible WiX Toolset detected: $installed"
+            choco upgrade wixtoolset --version=3.14.0 --allow-downgrade -y
+          }
 
       - name: Install dependencies
         run: npm ci