upgrade express-unless dependency to v1.0.0

[pipeline1987]

Description

The purpose of this PR is to cover the use of an async function across the custom function present through options in express-unless library, the feature is included in express-unless v1.0.0. for further info view the created issue: #264

References

• Upgrade the use of the major version express-unless v1.0.0 #264

Testing

N/A

Checklist

• I have added documentation for new/changed functionality in this PR or in auth0.com/docs
• All active GitHub checks for tests, formatting, and security are passing
• The correct base branch is being used, if not master