stack/slapos: version up nbconvert and dependencies

This is required because it depends on an older version of Jinja and
updating in 565f4986 (stack/slapos: version up Flask and friends
(itsdangerous, Jinja2, MarkupSafe, Werkzeug), 2023-10-12) broke jupyter
software

At the same time, move some pins from stack/erp5 to stack/slapos as they
become used by more softwares
6 jobs for 1.0 in 0 seconds
Status Job ID Name Coverage
  External
failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:51:26

failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:36

passed SlapOS-Master.StandaloneDeploymentScriptTest-Debian.Buster

00:33:18

passed SlapOS.Theia.ResilienceTest-Master-ERP5

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:31:28

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:13