Consider renaming workflow files

[jku]

This will be slightly annoying for everyone but I'm still considering this: Currently the tuf-on-ci workflows look like any other workflows and it would be nice if they were clearly separated by a name prefix

This is already the case in the actual name fields of the workflows so the Actions UI on Github looks fine (screenshot from root-signing-staging):

but the same is not true for the files -- it's impossible to tell which workflows are part of tuf-on-ci:

I would much rather that the tuf-on-ci workflows were named tuf-on-ci-create-signing-events.yml, tuf-on-ci-online-sign.yml, etc so it would be clear which workflows are projects own custom workflows and which ones are tuf-on-ci workflows.

I'm not 100% it's worth the annoying churn though: tuf-on-ci actions have to change and then all users need to do this rename that is probably easy to mess up.

[mrjoelkamp]

It would be nice to have the workflow names and the filenames be a 1:1 mapping 🙂