After renaming site-admins to org-admins in new cloud sites, migration for entities fail if they are link to site-admins

Issue Summary

Starting from Jul 2023, in the new Cloud Sites there will not be any site-admins group. It is renamed as org-admins. Kindly refer to below screenshot and the article.

With this change, Migration for entities fail if they are link to site-admins group in Source Site.

Atlassian Cloud Changes Jul 3 to Jul 10 2023 

Steps to Reproduce

1. Create a project PROJ in Cloud Site (created before 3-Jul-2023) having a permission "Delete Issues" which has group association with one of the groups "site-admins".
2. Migrate PROJ to a new Cloud site (created after 3-Jul-2023)

Expected Results

Project should migrate without any error

Actual Results

Project migration fails with below error

Chunk Migration Error: DefaultEntityMigrationError(dateTime=2024-01-22T11:16:56.309983451Z, entityId=mri:mig:jira/classic:permissionScheme:10003, reason=IllegalStateException: Errors: {holder.parameter=Group 'site-admins' does not exist} Error Messages: [], actionToResolve=null, numDownstreamFailures=14900, severity=ERROR) 

Workaround

There are 2 ways to resolve this issue.

• You can create a site-admins group on destination cloud. It won't have admin permissions to administer the site, but you can grant the group administer permission on products as needed and retry the migration.
  Or
• You can replace site-admins with org-admins in the source permission scheme and retry the migration.