Rename `use_github_action_check_full()`

[hadley]

Maybe to use_github_action_check_tidy()? Want to more clearly imply that overkill for most folks.

cc @jimhester

[jimhester]

I think calling it tidy might actually cause more people to use it, not less.

[hadley]

But the convention (in usethis at least), is the "tidy" stuff is for internal use. Maybe we should just drop the function altogether and rely use_tidy_github_actions() for our own use?

[jimhester]

I think dropping the function would be fine.