Add prometheus textcollector for Arch repositories

Export the repository size of our repositories so they can be monitored
and we have some useful data for repository growth in the future.
2 jobs for prometheus_repo_exporter in 42 seconds (queued for 4 seconds)
Status Name Job ID Coverage
  Test
failed ansible-lint #16416

00:00:42

passed terraform-validate #16417

00:00:40

 
Name Stage Failure
failed
ansible-lint Test
WARNING  Replaced deprecated tag '208' with 'risky-file-permissions' but it will become an error in the future.
WARNING Replaced deprecated tag '303' with 'command-instead-of-module' but it will become an error in the future.
You can skip specific rules or tags by adding them to your configuration file:
# .ansible-lint
warn_list: # or 'skip_list' to silence them completely
- yaml # Violations reported by yamllint
Finished with 1 failure(s), 0 warning(s) on 260 files.
Cleaning up file based variables
ERROR: Job failed: exit code 1