Cannot add more than two doi prefixes to configuration

[vchendrix]

When adding three doi prefixes to the service configuration for the DOI Service. We got an error becuase guid.doi.doishoulder.3 did not exist in the base metacat.properties file. We need to enable and arbitrary number of doi prefixes.

This is a blocker for https://app.zenhub.com/workspaces/development-team-61b268d2605a0d00130d8c64/issues/zh/6

Acceptance Criteria

Generated by Zenhub AI

• Scenario: Adding more than two doi prefixes to the configuration
• Given the service configuration allows for an arbitrary number of doi prefixes
• When three or more doi prefixes are added to the configuration
• Then the system should not throw an error and process the prefixes correctly