openEO: Outdated information for job-configuration

[Pratichhya]

The CDSE documentation seems quite out of date already. The memory options are higher on prod: https://git.vito.be/projects/TPT/repos/os_creodias_openeo_k8s/browse/kube_resources/applications/openeo_config/backendconfig_prod.py?at=bde5a25760528415f1b542a5ad76d6ea751ac919#285-288