https://archlinux.org/todo/change-sysusers-to-fully-locked-system-accounts/

The files must define the variables as empty, otherwise systemd warns
about referenced but unset environment variables.

- major version upgrade
- update license to SPDX
- reformat and sort depends, makedepends and optdepends for better handling
- move base dependencies (curl, dbus, glibc, pam, readline) to depends
- remove postgresql-libs from optdepends (not supported by slurm)
- remove ncurses from optdepends (smap was removed in version 20.02)
- remove openssl from optdepends (the crypto/openssl plugin does not exist for a long time)

Rebuild against openpmix 4.2.8