Add lint to CI

Validate code against lint rules in CI.

Author: martincostello

.github/workflows/build.yml

@@ -50,6 +50,10 @@ jobs:
       with:
         dotnet-version: '9.0.x'
 
+    - name: Lint
+      run: |
+        npm run format-check
+
     - name: Test
       run: |
         npm test