Make release-3.9 buildable

With this change, you can build the branch using `npm ci && npm run
build`.

.github/workflows/ci.yml

@@ -32,10 +32,8 @@ jobs:
         npm uninstall tslint --no-save
     - name: npm install and test
       run: |
-        npm install
-        npm update
+        npm ci
         npm test
-        
+
     - name: Validate the browser can import TypeScript
       run: gulp test-browser-integration
-