fix: int enums display warnings on the IDE when hydration helpers are called

[jeremiealvin]

Description

int enums display warnings when we call Hydratation helpers with the PHPStorm IDE

Screenshots

Types of changes

What types of changes does your code introduce? Put an x in all the boxes that apply:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have read the CONTRIBUTING document.
• My pull request addresses exactly one patch/feature.
• I have created a branch for this patch/feature.
• Each individual commit in the pull request is meaningful.
• If my change requires a change to the documentation, I have updated it accordingly.

Tests already cover this case, see: https://github.com/jeremiealvin/enum/blob/42a31c90180e2bc653c4d58173673d5e3c299fdc/tests/Unit/BackedEnumTest.php#L297

[cerbero90]

Thank you so much for your contribution, @jeremiealvin!

Please feel free to require the latest version of this package with your fix: 2.3.3