[Frontend] upgrade aem-clientlib-generator to v1.8.0

[kevinolivar]

Description

A high severity issue was reported for async, here GHSA-fwr7-v2mv-hh25
aem-clientlib-generator has async as dependencies and therefore, could also be potentially exposed to the vulnerability.

Related Issue

wcm-io-frontend/aem-clientlib-generator#44
#927

Motivation and Context

Reduce the risk for aem-clientlib-generator to be affected by the Prototype Pollution in async.

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• 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 signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.