feat(fusion-integration): Update Fusion Core API Urls

[terjebra]

• New feature
• Bug fix
• High impact

Description of work:

AB#58430

This PR updates the urls to the Fusion Core APIs. The APIs are now hosted in AKS and the azurewebsites URLs (App Service hosting) will in time be decommisoned.

Urls:

• CI/FQA/PR
  • For Portal:
    • https://fusion.<environment>.fusion-dev.net
  • For the rest of the APIs:
    • https://<servicename>.<environment>.api.fusion-dev.net
• FPRD:
  • https://<servicename>.api.fusion.equinor.com

Testing:

• Can be tested
• Automatic tests created / updated
• Local tests are passing

Checklist:

• Considered automated tests
• Considered updating specification / documentation
• Considered work items
• Considered security
• Performed developer testing
• Checklist finalized / ready for review