Added Github Actions workflow to run npm test script on push to git

.github/workflows/lint-and-test.yaml

@@ -0,0 +1,18 @@
+name: Lint and Test
+on: push
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: ['20.x', '22.x', '23.x']
+    steps:
+    - uses: actions/checkout@v4
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+    - name: Install dependencies
+      run: npm ci
+    - run: npm test