DTT2 - Testing Module. Enhance the test assertions

[mhamra]

Target version	Related issue	Related PR/dev branch
4.9.0	#5229 PR #5264	4495-dtt1-release

Description

The assertions of the Module's tests call the logger.error method instead of returning an error message. This method returns None. The current implementation generates all the AssertionError exception messages as None. For example, this code:

https://github.com/wazuh/wazuh-qa/blob/e71e39aea2caeb0dceab9645fe4f9343152a8a83/deployability/modules/testing/tests/test_agent/test_install.py#L81

We should implement it in this way:

assert HostInformation.dir_exists(wazuh_params['master'], WAZUH_ROOT), f'The {WAZUH_ROOT} is not present in {HostInformation.get_os_name_and_version_from_inventory(wazuh_params["master"])}' 

The other important point is whether the assertion should send the errors to the log file because Pytest sends the AssertionError exception to the final report.

Related PR comment: comment