Disable EventArc E2E test

The test fails with:

Error: Error creating Trigger: googleapi: Error 400: Invalid resource state for "": Permission denied while using the Eventarc Service Agent. If you recently started to use Eventarc, it may take a few minutes before all necessary permissions are propagated to the Service Agent. Otherwise, verify that it has Eventarc Service Agent role.

Retryig after 5 minutes fixes that, but thats not an option for
automated tests.

modules/cloud-run/README.md

@@ -296,7 +296,7 @@ module "cloud_run" {
     "roles/run.invoker" = [module.sa.iam_email]
   }
 }
-# tftest modules=2 resources=5 inventory=audit-logs.yaml e2e
+# tftest modules=2 resources=5 inventory=audit-logs.yaml
 ```
 
 #### Using custom service accounts for triggers