[grenoble] Update operating system section (bug #5714)

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-37.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-38.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-39.json

data/grid5000/sites/grenoble/clusters/edel/nodes/edel-4.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-40.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-41.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-42.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-43.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-44.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-45.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-46.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-47.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-48.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-49.json

data/grid5000/sites/grenoble/clusters/edel/nodes/edel-5.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-50.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-51.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-52.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-53.json

.../grid5000/sites/grenoble/clusters/edel/nodes/edel-54.json