FYI - running the rpm query command directly works as expected:

>bolt command run 'rpm -q --queryformat "%{VERSION}-%{RELEASE}" "grand-central"' -t queue03.pl
Started on queue03.pl...
Finished on queue03.pl:
  1.259-0.el8
Successful on 1 target: queue03.pl
Ran on 1 target in 0.81 sec