ci: add GitHub Actions workflow for creating Windows APPX artifacts

.github/workflows/create-artifact-windows-appx.yml

@@ -0,0 +1,32 @@
+name: Create artifact [WINDOWS APPX]
+
+on: 
+  workflow_dispatch: {}
+
+jobs:
+  build:
+    runs-on: windows-2022
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v4
+
+      - name: Install Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      
+      - name: Install dependencies
+        run: npm i
+        
+      - name: "Build"
+        run: npm run build:appx
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: windows-build
+          retention-days: 3
+          path: |
+            build
+            !build/*-unpacked
+            !build/.icon-ico