feat: add config-test github action

Author: James Tsai

.github/workflows/config-test.yml

@@ -0,0 +1,24 @@
+name: "Config Test"
+
+on: push
+
+jobs:
+  test:
+    name: test config files
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: ['12', '14', '16']
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v2
+      with:
+          node-version: ${{ matrix.node-version }}
+    - name: Install dependencies
+      run: npm install
+    - run: npm run test
+