ROX-31479: Add fetching of images for deployments

[mtodor]

Description

This PR is adding affected images to deployments.

For each deployment we will try to fetch affected images by specific CVE. In order to avoid making stress with many requests to central, number of parallel requests is limited to 10.

Validation

• Unit tests added
• Testing with LLM
• Performance difference test

LLM tests

(already had conversation to fetch affected deployments - they have been without images)
Prompt: Can you list images for affected deployments?
Response:

⏺ Here are the affected images for each deployment:

  <Cluster Name>

  1. visa-processor (namespace: payments)
    - quay.io/rhacs-demo/visa-processor:latest-v2
  2. backend-atlas (namespace: backend)
    - quay.io/rhacs-demo/backend-atlas:latest
  3. asset-cache (namespace: frontend)
    - quay.io/rhacs-demo/asset-cache:latest

Performance comparison (on local machine)

• Only deployments ~280ms
• Deployments with images ~1660ms

[codecov-commenter]

Codecov Report

❌ Patch coverage is 85.36585% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.71%. Comparing base (8000112) to head (7dffb8b).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
internal/toolsets/vulnerability/tools.go	85.36%	4 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #21      +/-   ##
==========================================
- Coverage   85.78%   85.71%   -0.08%     
==========================================
  Files          25       25              
  Lines         964     1001      +37     
==========================================
+ Hits          827      858      +31     
- Misses        104      108       +4     
- Partials       33       35       +2     

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