fix(instrumentation-user-interaction): reference zone.js types

Author: pichlermarc

plugins/web/opentelemetry-instrumentation-user-interaction/src/internal-types.ts

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+/// <reference types="zone.js" />
 import { HrTime } from '@opentelemetry/api';
 import { EventName } from './types';