playbook/upgrader: modify sha256sum to match the one generated by playbook cron

6 jobs for master in 0 seconds (queued for 1 second)
Status Job ID Name Coverage
  External
passed ERP5.StandaloneDeploymentScriptTest-Debian.Bullseye

00:24:47

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:30:12

passed SlapOS-Master.StandaloneDeploymentScriptTest-Debian.Bullseye

00:34:04

passed SlapOS-Master.StandaloneDeploymentScriptTest-Debian.Buster

00:30:50

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

00:33:49

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:35