Issue Summary

When a migration is started and it runs through the migration checks, there is no way to abort the check and it can take hours to complete. Requesting for an enhancement to allow end users to abort a migration check to allow for better user experience. 

Steps to Reproduce

1. In Jira, start a migration via JCMA
2. During the migration run, the check job would run

Desired Results

Ability to abort the running job/migration check

Actual Results

The end user has to wait for the checks to complete, even if they need to change something and cancel the migration

Workaround

None available