Fix last_check_date mapping when check updates service is disabled

[lucianogorza]

Description

This PR solves the error that produces the API endpoint manager/version/check response when the check updates service is disabled and the field last_check_date is an empty string.

Issues Resolved

#6168

Evidence

Service disabled

Up to date

Availabel updates

Test

1. Go to the file docker/imposter/wazuh-config.yml
2. Replace line 3 with: specFile: https://raw.githubusercontent.com/wazuh/wazuh/dev-14153-vulndet-refactor/api/api/spec/spec.yaml
3. Go to the file docker/imposter/manager/version/check.json and replace content with:

{
  "data": {
    "last_check_date": "",
    "current_version": "4.8.0",
    "update_check": false,
    "last_available_major": {},
    "last_available_minor": {},
    "last_available_patch": {}
  },
  "error": 0
}

5. Restart imposter

Check List

• All tests pass
  • yarn test:jest
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[github-actions]

Wazuh Check Updates plugin code coverage (Jest) test	%	values
Statements	76.68%	( 171 / 223 )
Branches	57.57%	( 57 / 99 )
Functions	61.7%	( 29 / 47 )
Lines	76.68%	( 171 / 223 )

[github-actions]

Wazuh Core plugin code coverage (Jest) test	%	values
Statements	21.38%	( 185 / 865 )
Branches	18.07%	( 79 / 437 )
Functions	14.22%	( 36 / 253 )
Lines	21.61%	( 182 / 842 )

[github-actions]

Main plugin code coverage (Jest) test	%	values
Statements	12.01%	( 4137 / 34438 )
Branches	8.16%	( 1890 / 23158 )
Functions	11.39%	( 934 / 8197 )
Lines	12.18%	( 4026 / 33032 )

[asteriscos]

CR: ✔️
Test: ✔️

[jbiset]

CR: 🟢

Test 🟢

Evidence