Update events-and-parameters.mdx (#18328)

* Update events-and-parameters.mdx

In "Pass parameters to a Workflow" example
* Remove await from crypto.randomUUID() call
* Remove redundant return

* Redundant change to trigger GH compiles pipeline

* Undoing redundant change

---------

Co-authored-by: Jun Lee <[email protected]>

Author: segeda

src/content/docs/workflows/build/events-and-parameters.mdx

@@ -40,7 +40,7 @@ export default {
     // Pass our event as the second parameter to the `create` method
     // on our Workflow binding.
     let instance = await env.MY_WORKFLOW.create({
-      id: await crypto.randomUUID(),
+      id: crypto.randomUUID(),
       params: someEvent
     });