[updatecli] update elastic stack version for testing 8.19.6-2c56a18b-SNAPSHOT#5729

pchila merged 1 commit into8.19elastic/fleet-server:8.19from

updatecli_8.19_bump-elastic-stack-snapshot-8.19elastic/fleet-server:updatecli_8.19_bump-elastic-stack-snapshot-8.19Copy head branch name to clipboard