* Bump actions/checkout from 2.4.0 to 3

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.4.0 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@ec3a7ce...a12a394)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* update version comment

Signed-off-by: cpanato <ctadeu@gmail.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: cpanato <ctadeu@gmail.com>

GitHub actions now has a 'none-all' shorthand[^1]

> You can use the following syntax to disable permissions for all of the available scopes:
>
> ```
> permissions: {}
>

This is the same behaviour as before, but is more intuitive than `actions: none`

[^1]: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#permissions

Signed-off-by: Jamie Magee <jamie.magee@gmail.com>

Signed-off-by: cpanato <ctadeu@gmail.com>

Signed-off-by: Bob Callaway <bcallaway@google.com>