Fix name of HTCondor yum repository Ansible task

[tpdownes]

This is a very simple PR to properly name the task that sets up the HTCondor yum repository. We no longer use the "Feature" (development) branch, but the "LTS" (Long Term Support) branch.

Submission Checklist

Please take the following actions before submitting this pull request.

• Fork your PR branch from the Toolkit "develop" branch (not main)
• Test all changes with pre-commit in a local branch #
• Confirm that "make tests" passes all tests
• Add or modify unit tests to cover code changes
• Ensure that unit test coverage remains above 80%
• Update all applicable documentation
• Follow Cloud HPC Toolkit Contribution guidelines #

[tpdownes]

For posterity, the HTCondor build failed for a reason unrelated to the PR: the 2 minute sleep turns out not to be enough to wait for VMs. The fix is to use a built-in feature for waiting for instances in the MIG terraform module. This has a bug associated with it and I may escalate its priority.