Add Github Action for windows build

Fixes #1070

This commit replaces Appveyor with a GitHub Actions workflow for Windows.
It uses `setup-node@v4` with `node-version: lts/*` and `checkout@v4`.
Also removes `appveyor.yml`.

Author: yaminijha1

.github/workflows/node.js.yml

@@ -7,9 +7,32 @@ on:
     branches: [main]
 
 jobs:
-  build:
+  build-ubuntu:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - run: npm ci
-      - run: npm test
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Install dependencies
+        run: npm ci
+      - name: Run tests
+        run: npm test
+
+  build-windows:
+    runs-on: windows-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "lts/*"
+      - name: Display Node.js version
+        run: node --version
+      - name: Display npm version
+        run: npm --version
+      - name: Display Python version
+        run: python --version
+      - name: Install dependencies
+        run: npm ci
+      - name: Run tests
+        run: npm test