Invoke Tasks - ensure all linters run

[calebcartwright]

Tasks that have defined pre-tasks will automatically run said pre-tasks when invoked. However, it will bail on the first non-zero exit, so if a task defines 2 pre-tasks (e.g. @task(aliases=["l"], pre=[lint_python, lint_yaml])), the second one will not be invoked if the first one fails.

pre-tasks are great for doing certain setup things (cleaning up test files before a run, or generating coverage before opening a cov report) but not as an aggregator intended to run multiple things.

There may be better ways to run multiple tasks, but I've found the approach we've been using in our dotfiles to work pretty well

https://github.com/swellaby/dotfiles/blob/8356cf7c4a27aeb306432b18430c810cab925bf7/tasks.py#L105-L119