docs: use dashboard task id in sentry test instructions

Author: isshaddad

docs/guides/examples/sentry-error-tracking.mdx

@@ -169,7 +169,7 @@ After creating the task, deploy your project.
 
     </CodeGroup>
 
-Once deployed, open the `sentryErrorTest` task in your [Trigger.dev dashboard](https://cloud.trigger.dev) (make sure you're in your `prod` environment) and press the "Test" button to open the test page for it.
+Once deployed, open the `sentry-error-test` task in your [Trigger.dev dashboard](https://cloud.trigger.dev) (make sure you're in your `prod` environment) and press the "Test" button to open the test page for it.
 
 Run a test task with an empty payload by clicking the `Run test` button.