Fix the access filter for privileged roles.

Description:

Current behavior:

• Endpoints that require service.dataset.viewers or editors roles do not allow requests from users with a higher role. Users with service.dataset.admin receive a 403 response code from endpoints like /retrievalInstructions or /storageInstructions.

Expected behavior:

• Users with role service.dataset.admin or service.dataset.editors are able to request endpoints that are available for users with role service.dataset.viewers.

How to test:

Does functionality was tested and how?

Changes include:

• Refactor (a non-breaking change that improves code maintainability).
• Bugfix (a non-breaking change that solves an issue).
• New feature (a non-breaking change that adds functionality).
• Breaking change (a change that is not backward-compatible and/or changes current functionality).

Changes in:

• Common code

Dev Checklist:

• Added Unit Tests, wherever applicable.
• Updated the Readme, if applicable.
• Existing Tests pass
• Verified functionality locally
• Self Reviewed my code for formatting and complex business logic.