fixup! infr: Add some testing infrastructure

1 job for new-infr in 8 seconds (queued for 9 seconds)
Name Stage Failure
check-bib Test

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

Reading package lists...
Building dependency tree...
Reading state information...
E: Unable to locate package bibtool
Cleaning up file based variables
ERROR: Job failed: exit code 1