add github configuration

Author: johnrb2

.github/workflows/test.yml

@@ -0,0 +1,23 @@
+
+name: Node.js CI
+on: push
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [20.x]
+    env:
+      NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm install
+      - name: Run tests
+        run: npx nyc@latest --reporter=lcov npm test
+      - uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}