ci: add a job to check types (#917)

Author: snitin315

.github/workflows/nodejs.yml

@@ -41,6 +41,12 @@ jobs:
       - name: Lint
         run: npm run lint
 
+      - name: Build types
+        run: npm run build:types
+
+      - name: Check types
+        run: if [ -n "$(git status types --porcelain)" ]; then echo "Missing types. Update types by running 'npm run build:types'"; exit 1; else echo "All types are valid"; fi
+
       - name: Security audit
         run: npm run security