Ensure gitlab-workhorse runs `make gitlab-workhorse-asdf-install`

What does this merge request do and why?

We've had some issues with the right Go version not being installed when the .tool-versions for GitLab Workhorse was bumped to 1.22.0. Tie the gitlab-workhorse binary to the gitlab-workhorse-asdf-install Makefile target to ensure the right version is installed before attempting to compile.

How to set up and validate locally

1. go uninstall golang 1.22.1
2. Run make gitlab-workhorse-asdf-install

Impacted categories

The following categories relate to this merge request:

• gdk-reliability - e.g. When a GDK action fails to complete.
• gdk-usability - e.g. Improvements or suggestions around how the GDK functions.
• gdk-performance - e.g. When a GDK action is slow or times out.

Merge request checklist

• This change is backward compatible. If not, please include steps to communicate to our users.
• Tests added for new functionality. If not, please raise an issue to follow-up.
• Documentation added/updated, if needed.
• Announcement added, if change is notable.
• gdk doctor test added, if needed.
• Add the ~highlight label if this MR should be included in the CHANGELOG.md.