Create a custom integration
[Required authorization] Route required privileges: integrations-all AND fleet-agent-policies-all.
POST /api/fleet/epm/custom_integrations
curl \ --request POST 'https://<KIBANA_URL>/api/fleet/epm/custom_integrations' \ --header "Authorization: $API_KEY" \ --header "Content-Type: application/json" \ --header "kbn-xsrf: true" \ --data '{"datasets":[{"name":"string","type":"logs"}],"force":true,"integrationName":"string"}'