Feature/cid 3656 simplify SBOM ingestion

[henriq-amaral-leanix]

🛠 Changes made

Simplify SBOM ingestion on the agent, and moved logic to the backend server

✨ Type of change

• New feature (non-breaking change which adds functionality)

🧪 How Has This Been Tested?

• Tests already cover

🏎 Checklist:

• My code follows the style guidelines
• I have performed a self-review of my own code
• My commit message clearly reflects the changes made
• Assigned the appropriate labels (version, PR type, etc.)

[github-actions]

LeanIX GitHub Agent Code Coverage

File	Coverage [80.98%]	🍏
ArtifactDownloadDTO.kt	100%	🍏
WebhookEventService.kt	90.47%	🍏
ArtifactDownloadHandler.kt	82.05%	🍏
ArtifactDTO.kt	70%	🍏
BrokerStompSessionHandler.kt	15.45%	❌

Total Project Coverage	71.12%	🍏