Install a package by upload
[Required authorization] Route required privileges: integrations-all AND fleet-agent-policies-all.
POST
/api/fleet/epm/packages
curl \
--request POST 'https://<KIBANA_URL>/api/fleet/epm/packages' \
--header "Authorization: $API_KEY" \
--header "Content-Type: application/gzip; application/zip" \
--header "kbn-xsrf: true" \
--data-binary '@file'