Release v4.0.0

[arturpimentel]

What is the purpose of this pull request?

Releases the changes of the last PR

What problem is this solving?

Ditto

How should this be manually tested?

Refer to https://github.com/vtex/toolbelt/pull/1200

Screenshots or example usage

Types of changes

• [ ] Refactor (non-breaking change that only makes the code better)
• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [x] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Requires change to documentation, which has been updated accordingly.

Chores checklist

• [ ] Update CHANGELOG.md