[EE] Fix broken master by ensuring the EE version of ListIssue is imported if available

CE backport: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/32964

What does this MR do?

Fix broken master by ensuring the EE version of ListIssue is imported if available

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• [-] Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• Separation of EE specific content

Performance and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers

Closes https://gitlab.com/gitlab-org/gitlab-ee/issues/31798, https://gitlab.com/gitlab-org/gitlab-ee/issues/31797.