Prevent feed update in the middle of the E2E Vulnerability tests

[Rebits]

Description

It has been observed that updates to the Vulnerability Detection feed content can cause some consistency E2E tests to fail, as seen in Vulnerability detection triggers alerts for the first syscollector scan. This issue arises even when the alerts/vulnerabilities generated by the feed updates are expected. We need to investigate possible solutions to ensure consistent test outcomes.

Proposed Solutions

• Use an Offline Feed for E2E Tests: Utilize a static version of the feed to ensure consistency across test runs.
• Prevent Feed Updates: Increase the feed-update-interval value to prevent updates during test execution. This approach needs validation from the development team to ensure it does not affect the manager's restart process
• Account for Feed Updates in Tests: Modify the tests to include logic that accounts for possible feed updates, ensuring expected outcomes are handled correctly.

Validation

• Ensure that test_consistency_initial_scans passes even if a content update occurs during the tests.

Any proposed solution should be validated by: @davidjiglesias, @juliamagan

[Rebits]

Waiting https://ci.wazuh.info/job/Test_e2e_system/ results

[santipadilla]

LGTM

[davidjiglesias]

LGTM