[AZINTS-4618] CAJ migration script - delete old resources

[parsons90]

1. Add deletion of old resources as the last step in the script. If the deletion fails, we should not rollback the script, but log warnings to customers to delete the resources.
2. Fix a bug in the pause/restart of the deployer task. Azure has a bug where pausing a scheduled CAJ can sometimes put it into a state where it can't be restarted. We need to modify the cron schedule to pause it.
3. Fix a bug where the LOG_LEVEL, DD_TELEMETRY, and DD_SITE vars were not being propagated to the new CAJs
4. Fix a bug in the role assignment rollback where it would delete the resource groups.

testing

Migrated an LFO. The resulting tasks run successfully

[benblaustein]

Looks good to me, I think these tests are not getting included in CI though.