Fix EndpointArtifactError

✅ Solution

The "EndpointArtifactError" in Kibana tests often arises when the Endpoint security integration hasn't fully initialized or the artifact index hasn't been created before the test attempts to interact with it. To resolve this, ensure the Endpoint integration is fully set up and the artifact index exists by adding a prerequisite setup step to explicitly initialize the Endpoint plugin and create the necessary index before running the artifact-related tests. This might involve checking the plugin's status and creating a dedicated index mapping within the test setup.