Fix CI errors with linting

package.json

@@ -39,7 +39,6 @@
     "chai-diff": "^1.0.1",
     "concurrently": "^5.0.0",
     "dirty-chai": "^2.0.1",
-    "dtslint": "^0.5.5",
     "dustjs-linkedin": "^2.0.2",
     "eco": "~1.1.0-rc-3",
     "eslint": "^6.7.2",
@@ -87,7 +86,7 @@
     "lint": "npm run lint:eslint && npm run lint:prettier && npm run lint:types",
     "lint:eslint": "eslint --max-warnings 0 .",
     "lint:prettier": "prettier --check '**/*.js'",
-    "lint:types": "dtslint types",
+    "lint:types": "tsc --noEmit --project types",
     "test": "npm run test:mocha",
     "test:mocha": "grunt build && grunt test",
     "test:browser": "playwright test --config tests/browser/playwright.config.js tests/browser/spec.js",