ci(commitlint): add initial commitlint config for pull requests

.github/workflows/commitlint.yml

@@ -0,0 +1,24 @@
+name: commitlint
+
+on: pull_request
+
+jobs:
+  commitlint:
+    name: commitlint
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node
+        uses: actions/setup-node@v2
+        with:
+          node-version: 16.x
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Lint commit messages
+        run: npx commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose