Adjustment to new GitLab Runner registration and LaunchConfiguration deprecation

[grantlerduck]

Are there any plans to migrate to the new GitLab Runner registration token which where introduced from GL 15.10+ ?
Moreover, LaunchConfigurations are going to be deprecated and new AWS accounts will not be able to create this resource starting from Oktober 1st 2024.
A migration from LaunchConfiguration to Templates does not seem to be a big change.
Are PRs welcome?

[ferguscan]

Created a PR with instructions for using Launch Templates.