Add default list of stages for pre-commit hook

Add default list of stages for pre-commit hook

The pre-commit default of running in all possible stages is not quite
optimal for perltidy. Follow upstream advice:

https://pre-commit.com/#confining-hooks-to-run-at-certain-stages

> If you are authoring a tool, it is usually a good idea to provide an
> appropriate stages property. For example a reasonable setting for a
> linter or code formatter would be stages:
> [pre-commit, pre-merge-commit, pre-push, manual].