ci: set up commit lint (#31)

Author: nattb8

.github/workflows/commitlint.yml

@@ -0,0 +1,12 @@
+---
+name: Lint Commit Messages
+on: [pull_request]
+
+jobs:
+  commitlint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - uses: wagoid/commitlint-github-action@v4