Add a workflow to update pre-commit hooks version in config when a new version is released

[m-roberts]

Problem description

It would be nice to have automation that means that when taplo is updated upstream, that the pre-commit hooks in this repo update themselves automatically.

Proposed solution

A new GitHub Actions workflow that runs semi-frequently:

• Check out code
• Get list of semantic version tags from upstream repo sorted from most recent to least (highest to lowest)
• Compare latest with version in config file
• If this repo is out of date, update with newest version
• Commit change, push to main branch
• Create new tag, push

This would automate the process of managing this repository.

[redeboer]

#4 should do the job 👍 I'll remove the tags and run that new workflow manually to overwrite the existing tags.