refac: WhenArchivedMessageIsCreatedTests

[lasrinnil]

Description

This PR moves the WhenArchivedMessageIsCreatedTests from the "old" IntegrationTest project into the ArchivedMessage.IntegrationTest.

• Some tests have been rewritten to a simpler approach
• A single test have been removed.
  • This was dont because ArchivedMessages FileStorageReference Id is now always made with a unique id when using the ArchivedMessageDto
    

References

This change has no reference, its simply boyscout'ing 🫡

Checklist

• Should the change be behind a feature flag?
• Can the feature be meaningfully disabled or circumvented if there are issues (e.g., database-breaking changes)?
• Has it been considered whether data is being delivered to the wrong actor?
• Subsystem test executed (dev_002/dev_003)
• Is there time to monitor state of the release to Production?
• Reference to the task

[github-actions]

Test results for \source\IntegrationTests\bin\Release\net8.0\Energinet.DataHub.EDI.IntegrationTests.dll

289 tests   289 ✅  56s ⏱️
  1 suites    0 💤
  1 files      0 ❌

Results for commit 1b3ef98.

♻️ This comment has been updated with latest results.