ci(actions): update actions/checkout version

[ok-coder1]

Description

This change updates the version of actions/checkout

Types of changes

• New feature (non-breaking change which adds functionality)

Checklist

• Code follows the code style of this project.
• Changes follow the CONTRIBUTING guidelines.
• Update necessary documentation accordingly.
• Lint and tests pass locally Xwith the changes.
• Check issues and pull requests first. You don't want to duplicate effort.

[boring-cyborg]

Thanks for your first pull request!

[BobAnkh]

LGTM

[boring-cyborg]

Awesome work, congrats on your first merged pull request!