[Feature]: No librarian is set, but librarian approval is required, and the approval process is blocked

[qymsummer]

Is your feature request related to a problem?

"There is no Librarian set for the project, but when you apply for the project, the approval process that matches the security risk requires the approval of the Librarian. At this point, the approver is empty. Can this scenario be optimized?

Describe the solution you'd like

The project does not have a librarian, but the approval process that matches security risks requires the approval of the librarian, and the approval process should not be blocked

Additional context

No response