Feature/843 add bruno tests

[lovoll]

Description

Related Issue(s)

• Implementer API POST delegation/offered/revoke (så de som ga tilgang kan trekke tilbake delegeringer) #843
• Implementer API GET og POST delegation/offered (for å se gitte delegeringer og for å delegere) #845
• API for sletting av instansdelegering fra Apps #838
• API for å hente eksisterende instansdelegeringer fra Apps #839

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)

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[jonkjetiloye]

Få inn referanse til feature/task som testene er knytt til, og husk å sjekk resultat av testene etter merge