Description of problem:

Upgrading cockpit generates the error message like the following:
  Running scriptlet: cockpit-ws-248-1.fc33.armv7hl                                                                                                                                                                                      15/59 
grep: {_sysconfdir}/pam.d/cockpit: No such file or directory

Seems to be caused by the lack of the '%' character in front of {_sysconfdir} here[1]:

    if grep --color=auto pam_cockpit_cert {_sysconfdir}/pam.d/cockpit; 

The same seems to be applicable for f33, f34 and rawhide.

[1] https://src.fedoraproject.org/rpms/cockpit/c/f4e105022dcc6b57af4d0bf152ceada68715083a?branch=f33