Add AlmaLinux VDT IT support

[mateocervilla]

Related issue
#3723

Description

For Wazuh v4.6.0 we want to add AlmaLinux support for the Wazuh Vulnerability Detector module.

For this reason, it was necessary to:

• Add a custom feed.
• Refactor the provider and feed tests.
• Add independent tests for test_scan_results.

Modules involved:

• test_vulnerability_detector/test_feeds/test_download_feeds.py
• test_vulnerability_detector/test_feeds/test_duplicate_feeds.py
• test_vulnerability_detector/test_feeds/test_import_invalid_feed_type.py
• test_vulnerability_detector/test_feeds/test_validate_feed_content.py
• test_vulnerability_detector/test_providers/test_enabled.py
• test_vulnerability_detector/test_providers/test_missing_os.py
• test_vulnerability_detector/test_providers/test_multiple_provider_feeds.py
• test_vulnerability_detector/test_providers/test_os.py
• test_vulnerability_detector/test_providers/test_update_from_year.py
• test_vulnerability_detector/test_providers/test_update_interval.py
• test_vulnerability_detector/test_scan_results/test_scan_nvd_vulnerabilities.py
• test_vulnerability_detector/test_scan_results/test_scan_provider_and_nvd_vulnerabilities.py
• test_vulnerability_detector/test_scan_results/test_scan_provider_vulnerabilities.py
• test_vulnerability_detector/test_scan_results/test_scan_vulnerability_removal.py

Logs example

Test Path	Os/Type	Execution Type	Results	Date	By
test/integration/test_vulnerability_detector/	Ubuntu - Manager	Local	🟢🟢🟢	2023/07/28	@mateocervilla
test/integration/test_vulnerability_detector/	- Manager	Jenkins	⚫ ⚫ ⚫

Notes:

• On test R1, there are 4 errors and 5 failed
  • The errors are from test_validate_xml_feed_content[Canonical xxxxx]
    • These are caused due to the links https://people.canonical.com/~ubuntu-security/oval/... are invalid. They should be https://security-metadata.canonical.com/oval/...
  • The failed tests are from test_download_feeds[SUSE Linux xxxxx]
    • These are caused due to the SUSE servers are too slow and the download time is longer than the timeout. This can be solved downloading the .gz files.
• For the tests R2 and R3, the previous issues were locally solved.
  • The error and failed test we can see on these tests are from test_validate_xml_feed_content[Red Hat Enterprise Linux0] and test_download_feeds[RHEL5]
    • This is a know issue fixed by this PR

[pereyra-m]

LGTM!