add tsec to CI, https://github.com/microsoft/vscode/issues/116459

.github/workflows/ci.yml

@@ -247,6 +247,9 @@ jobs:
       - name: Run Monaco Editor Checks
         run: yarn monaco-compile-check
 
+      - name: Run Trusted Types Checks
+        run: yarn tsec-compile-check
+
       - name: Editor Distro & ESM Bundle
         run: yarn gulp editor-esm-bundle