Improve xfailed management in API performance tests

[Selutario]

Target version	Related issue	Related PR/dev branch
-	wazuh/wazuh#15653	-

Description

Currently, the way xfail is used in API performance tests prevents endpoint execution from even being attempted:

wazuh-qa/tests/performance/test_api/test_api_endpoints_performance.py

Lines 35 to 38 in 1333324

	# Apply xfails
	if test_case['endpoint'] in xfailed_items.keys() and \
	test_case['method'] == xfailed_items[test_case['endpoint']]['method']:
	pytest.xfail(xfailed_items[test_case['endpoint']]['message'])

This makes it impossible to determine if any of the listed endpoints have worked correctly:

wazuh-qa/tests/performance/test_api/test_api_endpoints_performance.py

Lines 15 to 22 in 1333324

	xfailed_items = {
	'/active-response': {'message': 'Agent simulator not handling active-response messages: '
	'https://github.com/wazuh/wazuh-qa/issues/1266',
	'method': 'put'},
	'/agents/group': {'message': 'Investigate performance issues with PUT /agents/group API endpoint: '
	'https://github.com/wazuh/wazuh/issues/13872',
	'method': 'put'}
	}

Sometimes, such as for the PUT /agents/group endpoint in the tests run in the issue below, it might be useful to know if it's still failing or not, without explicitly modifying the list:

• Release 4.4.0 - Alpha 1 - Workload benchmarks metrics wazuh#15653

Configurations

Proposed test cases

Considerations

These tests are usually run inside a performance pipeline.

[RamosFe]

Update

Passed to on hold due to Release 4.7.0 Integration tests.

[davidjiglesias]

LGTM!