Require grub-efi-amd64-signed to be installed on ORS

ors57 failed to run playbook when installing pip because
this package was missing
12 jobs for bbu in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.StandaloneDeploymentScriptTest-Debian.Bullseye

00:47:20

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:34:49

failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:22

passed SlapOS-Master.StandaloneDeploymentScriptTest-Debian.Bullseye

00:49:39

passed SlapOS-Master.StandaloneDeploymentScriptTest-Debian.Buster

00:33:20

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

00:30:10

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:30:53

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:03

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:48:50

failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

passed SlapOS-Master.StandaloneDeploymentScriptTest-Debian.Buster

00:44:52

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:33:41