Substitute PolicyRepository with PolicyFactory and add CancellationToken

[andreasisnes]

add cancellation token to all actions and propegate it downstream that utilize policy repository implementation.

• Single rights delegations
• Maskinporten delegations
• PAP
• PIP

Related Issue(s)

• IPolicyRepository manglende cancellationToken på samtlige blobstorage operasjoner #765

Developer/Reviewer Checklist

• Your code builds clean without any errors or warnings
• No changes to config/appsettings or environment variables created in separate linked PR
• Manual testing done (required)
• Relevant integration test added (required for functional changes)
• Relevant automated test added (required for functional changes)
• All integration tests run green

Documentation

• User documentation is updated with a separate linked PR in altinn-studio-docs. (if applicable)

[sonarqubecloud]

Quality Gate failed

Failed conditions
59.2% Coverage on New Code (required ≥ 65%)
50.0% Condition Coverage on New Code (required ≥ 65%)

See analysis details on SonarCloud