Issue Summary

This is reproducible on Data Center: yes

Currently on JCMA there is a fixed 3h window to skip some checks, including Data Preparation Check which is usually the heaviest one, between the successful run of the 1st preflight, and the 2nd (executed after user clicks on Mig Plan Run button).

While this might work for quick preflight runs, it is not ideal for long running preflights, since they could finish executing when no one is around to click on the Run button for a couple of hours, and hence the 2nd preflight will have to execute the heavy checks again.

As a suggestion for this, this window could be raised, and made configurable to enhance user experience with this feature.

Steps to Reproduce

1. Create a mig plan with Project Data and run the Preflights.
2. Click on the run button before 3h window.
3. Verify that Data Preparation Check has been skipped through JCMA log file (no "DryRunPreflightService perform check has started" log message present).
4. Create another mig plan with Project Data and run the Preflights.
5. Wait for 3h+ after 1st Preflight finished, and click on the run button.
6. Verify on JCMA log file that Data Preparation Check was not skipped.