Add Hadolint to lint Dockerfile

.github/workflows/ci.yml

@@ -42,6 +42,17 @@ jobs:
       - name: Run ESLint
         run: npm run lint
 
+    # Lint our Dockerfile using Hadolint
+  dockerfile-lint:
+    name: Dockerfile Lint
+    runs-on: ubuntu-latest
+    steps:
+      # https://github.com/marketplace/actions/hadolint-action
+      - uses: actions/checkout@v4
+      - uses: hadolint/[email protected]
+        with:
+          dockerfile: Dockerfile
+
   unit-tests:
     name: Unit Tests
     runs-on: ubuntu-latest