Update `actions` action and dependabot configuration.

[YooSunYoung]

These actions were ignored by the dependabot becuase of this option:

ignore:
      # Optional: Official actions have moving tags like v1;
      # if you use those, you don't need updates.
      - dependency-name: "actions/*"

But it was weird that pre-commit was not updated either, and it seems like if it is not '/', you should provide full-path to the workflows...? It's not explicitly mentioned but it only mentions that it finds .github/workflows if the path is /. https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#directory

So I also updated them manually but later dependabot should be able to pick it up.